diff --git a/package-lock.json b/package-lock.json
index f104cf1..57af218 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12,6 +12,7 @@
         "clean-webpack-plugin": "^4.0.0",
         "copy-webpack-plugin": "^11.0.0",
         "json5": "^2.2.1",
+        "lit": "^2.2.5",
         "path": "^0.12.7",
         "sortablejs": "^1.15.0",
         "webpack": "^5.72.1",
@@ -28,6 +29,11 @@
         "node": ">=10.0.0"
       }
     },
+    "node_modules/@lit/reactive-element": {
+      "version": "1.3.2",
+      "resolved": "https://registry.npmjs.org/@lit/reactive-element/-/reactive-element-1.3.2.tgz",
+      "integrity": "sha512-A2e18XzPMrIh35nhIdE4uoqRzoIpEU5vZYuQN4S3Ee1zkGdYC27DP12pewbw/RLgPHzaE4kx/YqxMzebOpm0dA=="
+    },
     "node_modules/@nodelib/fs.scandir": {
       "version": "2.1.5",
       "resolved": "https://registry.npmjs.org/@nodelib/fs.scandir/-/fs.scandir-2.1.5.tgz",
@@ -107,6 +113,11 @@
       "resolved": "https://registry.npmjs.org/@types/node/-/node-17.0.35.tgz",
       "integrity": "sha512-vu1SrqBjbbZ3J6vwY17jBs8Sr/BKA+/a/WtjRG+whKg1iuLFOosq872EXS0eXWILdO36DHQQeku/ZcL6hz2fpg=="
     },
+    "node_modules/@types/trusted-types": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/@types/trusted-types/-/trusted-types-2.0.2.tgz",
+      "integrity": "sha512-F5DIZ36YVLE+PN+Zwws4kJogq47hNgX3Nx6WyDJ3kcplxyke3XIzB8uK5n/Lpm1HBsbGzd6nmGehL8cPekP+Tg=="
+    },
     "node_modules/@webassemblyjs/ast": {
       "version": "1.11.1",
       "resolved": "https://registry.npmjs.org/@webassemblyjs/ast/-/ast-1.11.1.tgz",
@@ -1118,6 +1129,33 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/lit": {
+      "version": "2.2.5",
+      "resolved": "https://registry.npmjs.org/lit/-/lit-2.2.5.tgz",
+      "integrity": "sha512-Ln463c0xJZfzVxBcHddNvFQQ8Z22NK7KgNmrzwFF1iESHUud412RRExzepj18wpTbusgwoTnOYuoTpo9uyNBaQ==",
+      "dependencies": {
+        "@lit/reactive-element": "^1.3.0",
+        "lit-element": "^3.2.0",
+        "lit-html": "^2.2.0"
+      }
+    },
+    "node_modules/lit-element": {
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/lit-element/-/lit-element-3.2.0.tgz",
+      "integrity": "sha512-HbE7yt2SnUtg5DCrWt028oaU4D5F4k/1cntAFHTkzY8ZIa8N0Wmu92PxSxucsQSOXlODFrICkQ5x/tEshKi13g==",
+      "dependencies": {
+        "@lit/reactive-element": "^1.3.0",
+        "lit-html": "^2.2.0"
+      }
+    },
+    "node_modules/lit-html": {
+      "version": "2.2.5",
+      "resolved": "https://registry.npmjs.org/lit-html/-/lit-html-2.2.5.tgz",
+      "integrity": "sha512-e56Y9V+RNA+SGYsWP2DGb/wad5Ccd3xUZYjmcmbeZcnc0wP4zFQRXeXn7W3bbfBekmHDK2dOnuYNYkg0bQjh/w==",
+      "dependencies": {
+        "@types/trusted-types": "^2.0.2"
+      }
+    },
     "node_modules/loader-runner": {
       "version": "4.3.0",
       "resolved": "https://registry.npmjs.org/loader-runner/-/loader-runner-4.3.0.tgz",
@@ -1988,6 +2026,11 @@
       "resolved": "https://registry.npmjs.org/@discoveryjs/json-ext/-/json-ext-0.5.7.tgz",
       "integrity": "sha512-dBVuXR082gk3jsFp7Rd/JI4kytwGHecnCoTtXFb7DB6CNHp4rg5k1bhg0nWdLGLnOV71lmDzGQaLMy8iPLY0pw=="
     },
+    "@lit/reactive-element": {
+      "version": "1.3.2",
+      "resolved": "https://registry.npmjs.org/@lit/reactive-element/-/reactive-element-1.3.2.tgz",
+      "integrity": "sha512-A2e18XzPMrIh35nhIdE4uoqRzoIpEU5vZYuQN4S3Ee1zkGdYC27DP12pewbw/RLgPHzaE4kx/YqxMzebOpm0dA=="
+    },
     "@nodelib/fs.scandir": {
       "version": "2.1.5",
       "resolved": "https://registry.npmjs.org/@nodelib/fs.scandir/-/fs.scandir-2.1.5.tgz",
@@ -2058,6 +2101,11 @@
       "resolved": "https://registry.npmjs.org/@types/node/-/node-17.0.35.tgz",
       "integrity": "sha512-vu1SrqBjbbZ3J6vwY17jBs8Sr/BKA+/a/WtjRG+whKg1iuLFOosq872EXS0eXWILdO36DHQQeku/ZcL6hz2fpg=="
     },
+    "@types/trusted-types": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/@types/trusted-types/-/trusted-types-2.0.2.tgz",
+      "integrity": "sha512-F5DIZ36YVLE+PN+Zwws4kJogq47hNgX3Nx6WyDJ3kcplxyke3XIzB8uK5n/Lpm1HBsbGzd6nmGehL8cPekP+Tg=="
+    },
     "@webassemblyjs/ast": {
       "version": "1.11.1",
       "resolved": "https://registry.npmjs.org/@webassemblyjs/ast/-/ast-1.11.1.tgz",
@@ -2821,6 +2869,33 @@
       "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-6.0.3.tgz",
       "integrity": "sha512-dcS1ul+9tmeD95T+x28/ehLgd9mENa3LsvDTtzm3vyBEO7RPptvAD+t44WVXaUjTBRcrpFeFlC8WCruUR456hw=="
     },
+    "lit": {
+      "version": "2.2.5",
+      "resolved": "https://registry.npmjs.org/lit/-/lit-2.2.5.tgz",
+      "integrity": "sha512-Ln463c0xJZfzVxBcHddNvFQQ8Z22NK7KgNmrzwFF1iESHUud412RRExzepj18wpTbusgwoTnOYuoTpo9uyNBaQ==",
+      "requires": {
+        "@lit/reactive-element": "^1.3.0",
+        "lit-element": "^3.2.0",
+        "lit-html": "^2.2.0"
+      }
+    },
+    "lit-element": {
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/lit-element/-/lit-element-3.2.0.tgz",
+      "integrity": "sha512-HbE7yt2SnUtg5DCrWt028oaU4D5F4k/1cntAFHTkzY8ZIa8N0Wmu92PxSxucsQSOXlODFrICkQ5x/tEshKi13g==",
+      "requires": {
+        "@lit/reactive-element": "^1.3.0",
+        "lit-html": "^2.2.0"
+      }
+    },
+    "lit-html": {
+      "version": "2.2.5",
+      "resolved": "https://registry.npmjs.org/lit-html/-/lit-html-2.2.5.tgz",
+      "integrity": "sha512-e56Y9V+RNA+SGYsWP2DGb/wad5Ccd3xUZYjmcmbeZcnc0wP4zFQRXeXn7W3bbfBekmHDK2dOnuYNYkg0bQjh/w==",
+      "requires": {
+        "@types/trusted-types": "^2.0.2"
+      }
+    },
     "loader-runner": {
       "version": "4.3.0",
       "resolved": "https://registry.npmjs.org/loader-runner/-/loader-runner-4.3.0.tgz",
diff --git a/package.json b/package.json
index 943c76c..bf1b2c1 100644
--- a/package.json
+++ b/package.json
@@ -28,6 +28,7 @@
     "clean-webpack-plugin": "^4.0.0",
     "copy-webpack-plugin": "^11.0.0",
     "json5": "^2.2.1",
+    "lit": "^2.2.5",
     "path": "^0.12.7",
     "sortablejs": "^1.15.0",
     "webpack": "^5.72.1",
diff --git a/src/common/i18n.js b/src/common/i18n.js
new file mode 100644
index 0000000..053ea9b
--- /dev/null
+++ b/src/common/i18n.js
@@ -0,0 +1,5 @@
+// Helper function which serves as a shorter alias to the chrome.i18n.getMessage
+// method, specially useful inside lit templates.
+export function msg(...args) {
+  return chrome.i18n.getMessage(...args);
+}
diff --git a/src/options/elements/credits-dialog/credits-dialog.js b/src/options/elements/credits-dialog/credits-dialog.js
new file mode 100644
index 0000000..abec000
--- /dev/null
+++ b/src/options/elements/credits-dialog/credits-dialog.js
@@ -0,0 +1,146 @@
+import {css, html, LitElement} from 'lit';
+import {map} from 'lit/directives/map.js';
+import {unsafeHTML} from 'lit/directives/unsafe-html.js';
+
+import {msg} from '../../../common/i18n.js';
+import credits from '../../credits.json5';
+import i18nCredits from '../../i18n-credits.json5';
+import {DIALOG_STYLES} from '../../shared/dialog-styles.js';
+import {SHARED_STYLES} from '../../shared/shared-styles.js';
+
+export class CreditsDialog extends LitElement {
+  static get styles() {
+    return [
+      SHARED_STYLES,
+      DIALOG_STYLES,
+      css`
+        dialog {
+          max-height: 430px;
+          width: 400px;
+        }
+
+        dialog[open] {
+          display: flex;
+          flex-direction: column;
+        }
+
+        .content_area h4 {
+          margin-bottom: 0;
+        }
+
+        .entry {
+          position: relative;
+        }
+
+        .entry a.homepage {
+          position: absolute;
+          inset-inline-end: 16px;
+          font-size: 14px;
+        }
+
+        p,
+        span {
+          font-size: 14px;
+        }
+
+        p.author {
+          margin-top: 7px;
+        }
+
+        #translators .name {
+          font-weight: bold;
+        }
+
+        .createdby {
+          font-style: italic;
+        }
+      `,
+    ];
+  }
+
+  constructor() {
+    super();
+    this.addEventListener('show-credits-dialog', this.showDialog);
+  }
+
+  render() {
+    let translators = map(i18nCredits, contributor => {
+      let languagesArray =
+          contributor?.languages?.map?.(lang => lang?.name ?? 'undefined');
+      let languages =
+          languagesArray.length > 0 ? ': ' + languagesArray.join(', ') : '';
+      return html`
+        <li>
+          <span class="name">${contributor?.name}</span>${languages}
+        </li>
+      `;
+    });
+
+    let homepageMsg = msg('options_credits_homepage');
+    let creditsByMsg = msg('options_credits_by');
+
+    let otherCredits = map(credits, c => {
+      let url = c.url ? html`
+            <a href=${c?.url} target="_blank" class="homepage">
+              ${homepageMsg}
+            </a>` :
+                        undefined;
+      let license = c.license ? ' - ' + c.license : '';
+      let author = c.author ? html`
+        <p class="author">
+          ${creditsByMsg} ${c.author}${license}
+        </p>
+      ` :
+                              undefined;
+
+      return html`
+        <div class="entry">
+          ${url}
+          <h4>${c?.name}</h4>
+          ${author}
+        </div>
+      `;
+    });
+
+    return html`
+      <dialog>
+        <div class="scrollable">
+          <h3>${msg('options_credits')}</h3>
+          <div class="entry createdby">
+            <div>${unsafeHTML(msg('options_credits_createdby'))}</div>
+          </div>
+          <div class="entry">
+            <a href="https://gtranslate.avm99963.com/" class="homepage" target="_blank">
+              ${msg('options_credits_homepage')}
+            </a>
+            <h4>${msg('options_credits_translations')}</h4>
+            <div>${msg('options_credits_translations_paragraph')}</div>
+            <ul id="translators">
+              ${translators}
+            </ul>
+          </div>
+          <div class="content_area">
+            ${otherCredits}
+          </div>
+        </div>
+        <div class="action_buttons">
+          <button id="credits_ok" @click="${this.closeDialog}">
+            ${msg('options_ok')}
+          </button>
+        </div>
+      </dialog>
+    `;
+  }
+
+  showDialog() {
+    let dialog = this.renderRoot.querySelector('dialog');
+    dialog.showModal();
+    dialog.querySelector('.scrollable').scrollTo(0, 0);
+    dialog.querySelector('#credits_ok').focus();
+  }
+
+  closeDialog() {
+    this.renderRoot.querySelector('dialog').close();
+  }
+}
+customElements.define('credits-dialog', CreditsDialog);
diff --git a/src/options/elements/options-editor/add-language-dialog.js b/src/options/elements/options-editor/add-language-dialog.js
new file mode 100644
index 0000000..7b85618
--- /dev/null
+++ b/src/options/elements/options-editor/add-language-dialog.js
@@ -0,0 +1,112 @@
+import {css, html, LitElement} from 'lit';
+
+import {isoLangs} from '../../../common/consts.js';
+import {msg} from '../../../common/i18n.js';
+import {DIALOG_STYLES} from '../../shared/dialog-styles.js';
+import {SHARED_STYLES} from '../../shared/shared-styles.js';
+
+const ALL_LANGUAGES =
+    Object.entries(isoLangs)
+        .map(entry => {
+          let lang = entry[1];
+          lang.code = entry[0];
+          return lang;
+        })
+        .sort((a, b) => a.name < b.name ? -1 : (a.name > b.name ? 1 : 0));
+
+export class AddLanguageDialog extends LitElement {
+  static properties = {
+    languages: {type: Object},
+  };
+
+  static get styles() {
+    return [
+      SHARED_STYLES,
+      DIALOG_STYLES,
+      css`
+        dialog {
+          max-height: 430px;
+          width: 430px;
+        }
+
+        #language_label {
+          font-size: 12px;
+        }
+
+        select {
+          width: 100%;
+        }
+
+        .action_buttons {
+          border-top: none;
+          padding-top: 0;
+        }
+      `,
+    ];
+  }
+
+  constructor() {
+    super();
+    this.addEventListener('show-add-language-dialog', this.showDialog);
+  }
+
+  render() {
+    let languageCodes = Object.values(this.languages ?? {});
+    let languages = ALL_LANGUAGES
+                        .filter(lang => {
+                          return !languageCodes.includes(lang.code);
+                        })
+                        .map(lang => {
+                          return html`
+          <option value=${lang.code}>
+            ${lang?.name} (${lang?.nativeName})
+          </option>
+        `;
+                        });
+
+    return html`
+      <dialog>
+        <div class="scrollable">
+          <h3>${msg('options_addlanguage')}</h3>
+          <div class="content_area">
+            <label id="language_label" for="select_language">
+              ${msg('options_language_label')}
+            </label>
+            <select id="select_language">${languages}</select>
+          </div>
+        </div>
+        <div class="action_buttons">
+          <button @click=${this.closeDialog}>
+            ${msg('options_cancel')}
+          </button>
+          <button @click=${this.addLanguage}>
+            ${msg('options_addlanguage_addbutton')}
+          </button>
+        </div>
+      </dialog>
+    `;
+  }
+
+  showDialog() {
+    let dialog = this.renderRoot.querySelector('dialog');
+    dialog.showModal();
+  }
+
+  closeDialog() {
+    this.renderRoot.querySelector('dialog').close();
+  }
+
+  addLanguage() {
+    let languageCodes = Object.values(this.languages ?? {});
+    let select = this.renderRoot.querySelector('#select_language');
+
+    let newLang = select.value;
+    languageCodes.push(newLang);
+    let translateinto = Object.assign({}, languageCodes);
+    chrome.storage.sync.set({translateinto}, () => {
+      select.selectedIndex = 0;
+      this.closeDialog();
+    });
+  }
+}
+customElements.define('add-language-dialog', AddLanguageDialog);
diff --git a/src/options/elements/options-editor/languages-editor.js b/src/options/elements/options-editor/languages-editor.js
new file mode 100644
index 0000000..7845a65
--- /dev/null
+++ b/src/options/elements/options-editor/languages-editor.js
@@ -0,0 +1,188 @@
+import {css, html, LitElement} from 'lit';
+import {map} from 'lit/directives/map.js';
+
+import {isoLangs} from '../../../common/consts.js';
+import {msg} from '../../../common/i18n.js';
+import {SHARED_STYLES} from '../../shared/shared-styles.js';
+
+import AddLanguageDialog from './add-language-dialog.js';
+
+export class LanguagesEditor extends LitElement {
+  static properties = {
+    languages: {type: Object},
+  };
+
+  static get styles() {
+    return [
+      SHARED_STYLES,
+      css`
+        #languages_container {
+          width: 300px;
+          height: 250px;
+          border: 1px solid #ccc;
+          background-color: #E3F2FD;
+          overflow: auto;
+        }
+
+        #languages {
+          list-style: none;
+          margin: 0;
+          padding: 0;
+        }
+
+        #languages li {
+          display: flex;
+          flex-direction: row;
+          align-items: center;
+          padding: 15px;
+          border-bottom: 1px dashed #ddd;
+          background-color: #EEF7FD;
+          -webkit-user-select: none;
+        }
+
+        #languages li .label {
+          flex-grow: 1;
+        }
+
+        #languages li .delete {
+          font-size: 18px;
+          color: red;
+          padding-left: 2px;
+          margin-left: 2px;
+        }
+
+        #languages li .movebtn {
+          font-size: 16px;
+          color: blue;
+          padding: 0 2px;
+          margin: 0 2px;
+        }
+
+        #languages li :is(.delete, .movebtn) {
+          cursor: pointer;
+          text-align: center;
+        }
+
+        #languages li .movebtn--disabled {
+          color: gray;
+          cursor: not-allowed;
+        }
+
+        #languages_footer {
+          width: 300px;
+          height: 35px;
+          background-color: #fff;
+          border: 1px solid #ccc;
+          border-top: 0;
+        }
+
+        #languages_add {
+          margin-inline-start: 4px;
+          margin-top: 4px;
+        }
+      `,
+    ];
+  }
+
+  constructor() {
+    super();
+    this.addEventListener('show-credits-dialog', this.showDialog);
+    this.sortable = undefined;
+  }
+
+  render() {
+    let languageCodes = Object.values(this.languages ?? {});
+    let languageList = map(languageCodes, (lang, i) => {
+      let moveBtns = [];
+      if (i != 0) {
+        moveBtns.push(html`
+          <button
+              class="notbtn movebtn"
+              @click=${() => this.swapLanguages(i, i - 1)}>
+            ↑
+          </button>
+        `);
+      } else {
+        moveBtns.push(html`
+          <button class="notbtn movebtn movebtn--disabled">
+            ↑
+          </button>
+        `);
+      }
+      if (i != languageCodes.length - 1) {
+        moveBtns.push(html`
+          <button
+              class="notbtn movebtn"
+              @click=${() => this.swapLanguages(i, i + 1)}>
+            ↓
+          </button>
+        `);
+      } else {
+        moveBtns.push(html`
+          <button class="notbtn movebtn movebtn--disabled">
+            ↓
+          </button>
+        `);
+      }
+
+      return html`
+        <li data-id=${lang}>
+          <span class="label">
+            ${isoLangs?.[lang]?.['name']} (${isoLangs?.[lang]?.nativeName})
+          </span>
+          ${moveBtns}
+          <button
+              class="notbtn delete"
+              @click=${() => this.deleteLanguage(lang)}>
+            ×
+          </button>
+        </li>
+      `;
+    });
+
+    return html`
+      <div id="languages_container">
+        <ul id="languages">${languageList}</ul>
+      </div>
+      <div id="languages_footer">
+        <button @click=${this.showAddLanguageDialog} id="languages_add">
+          ${msg('options_addlanguage_addbutton')}
+        </button>
+      </div>
+
+      <add-language-dialog .languages=${this.languages}></add-language-dialog>
+    `;
+  }
+
+  showAddLanguageDialog() {
+    const e = new CustomEvent(
+        'show-add-language-dialog', {bubbles: true, composed: true});
+    this.renderRoot.querySelector('add-language-dialog').dispatchEvent(e);
+  }
+
+  save(languageCodes) {
+    let translateinto = Object.assign({}, languageCodes);
+    chrome.storage.sync.set({translateinto});
+  }
+
+  deleteLanguage(deleteLang) {
+    let languageCodes =
+        Object.values(this.languages ?? {}).filter(lang => lang != deleteLang);
+    this.save(languageCodes);
+  }
+
+  swapLanguages(i, j) {
+    let languageCodes = Object.values(this.languages ?? {});
+    if (i >= languageCodes.length || j >= languageCodes.length || i < 0 ||
+        j < 0) {
+      console.error(
+          'Can\'t swap languages because the indexes are out of the range.');
+      return;
+    }
+    let tmp = languageCodes[j];
+    languageCodes[j] = languageCodes[i];
+    languageCodes[i] = tmp;
+    this.save(languageCodes);
+  }
+}
+customElements.define('languages-editor', LanguagesEditor);
diff --git a/src/options/elements/options-editor/options-editor.js b/src/options/elements/options-editor/options-editor.js
new file mode 100644
index 0000000..9e32dfa
--- /dev/null
+++ b/src/options/elements/options-editor/options-editor.js
@@ -0,0 +1,88 @@
+import {css, html, LitElement} from 'lit';
+import {map} from 'lit/directives/map.js';
+
+import {msg} from '../../../common/i18n.js';
+import {SHARED_STYLES} from '../../shared/shared-styles.js';
+
+import LanguagesEditor from './languages-editor.js';
+
+const TAB_OPTIONS = [
+  // Open in new tab for each translation
+  {
+    value: '',
+    labelMsg: 'options_tabsoption_1',
+    deprecatedValues: [],
+  },
+  // Open in a unique tab
+  {
+    value: 'yep',
+    labelMsg: 'options_tabsoption_2',
+    deprecatedValues: [],
+  },
+  // Open in a popup
+  {
+    value: 'popup',
+    labelMsg: 'options_tabsoption_3',
+    deprecatedValues: ['panel'],
+  },
+];
+
+export class OptionsEditor extends LitElement {
+  static properties = {
+    storageData: {type: Object},
+  };
+
+  static get styles() {
+    return [
+      SHARED_STYLES,
+      css`
+        #otheroptions p {
+          margin-top: 0;
+          margin-bottom: 8px;
+        }
+      `,
+    ];
+  }
+
+  constructor() {
+    super();
+    this.addEventListener('show-credits-dialog', this.showDialog);
+  }
+
+  render() {
+    let currentTabOption = this.storageData?.uniquetab;
+
+    let otherOptions = map(TAB_OPTIONS, (option, i) => {
+      let checked = option.value == currentTabOption ||
+          option.deprecatedValues.includes(currentTabOption);
+      return html`
+            <p>
+              <input type="radio" name="uniquetab" id="uniquetab_${i}"
+                  value="${option?.value}" ?checked="${checked}"
+                  @change="${() => this.changeTabOption(option.value)}">
+              <label for="uniquetab_${i}">${msg(option.labelMsg)}</label></p>
+          `;
+    });
+
+    return html`
+      <languages-editor .languages="${this.storageData?.translateinto}">
+      </languages-editor>
+
+      <h2 id="otheroptionsheader">${msg('options_otheroptionsheader')}</h2>
+
+      <div id="otheroptions">
+        ${otherOptions}
+      </div>
+    `;
+  }
+
+  changeTabOption(value) {
+    chrome.storage.sync.set({uniquetab: value}, function() {
+      var background = chrome.extension.getBackgroundPage();
+
+      background.translator_tab = false;
+      background.translator_window = false;
+    });
+  }
+}
+customElements.define('options-editor', OptionsEditor);
diff --git a/src/options/options.js b/src/options/options.js
index c89f1bd..cba1dd2 100644
--- a/src/options/options.js
+++ b/src/options/options.js
@@ -1,271 +1,92 @@
-import Sortable from 'sortablejs/modular/sortable.core.esm.js';
+import {css, html, LitElement} from 'lit';
 
-import {isoLangs} from '../common/consts.js';
+import {msg} from '../common/i18n.js';
 
-import credits from './credits.json5';
-import i18nCredits from './i18n-credits.json5';
+import CreditsDialog from './elements/credits-dialog/credits-dialog.js';
+import OptionsEditor from './elements/options-editor/options-editor.js';
 
-let sortable;
+import {SHARED_STYLES} from './shared/shared-styles.js';
 
-function $(selector) {
-  return document.querySelector(selector);
-}
-
-function $all(selector) {
-  return document.querySelectorAll(selector);
-}
-
-function isEmpty(obj) {
-  return Object.keys(obj).length === 0;
-}
-
-function i18n() {
-  $all('[data-i18n]').forEach(el => {
-    el.innerHTML =
-        chrome.i18n.getMessage('options_' + el.getAttribute('data-i18n'));
-  });
-}
-
-function printListModal() {
-  $('#select_language').textContent = '';
-  var heysortable = sortable.toArray();
-  var languages = [];
-  for (var langCode of Object.keys(isoLangs)) {
-    var l = isoLangs[langCode];
-    l['code'] = langCode;
-    languages.push(l);
+export class OptionsPage extends LitElement {
+  static properties = {
+    _storageData: {type: Object, state: true},
   }
 
-  languages.sort((a, b) => a.name < b.name ? -1 : (a.name > b.name ? 1 : 0));
-  languages.forEach(language => {
-    if (!inArray(language['code'], heysortable)) {
-      var el = document.createElement('option');
-      el.setAttribute('value', language['code']);
-      el.textContent = language['name'] + ' (' + language['nativeName'] + ')';
-      $('#select_language').appendChild(el);
-    }
-  });
-}
-
-function init() {
-  i18n();
-  chrome.storage.sync.get(null, items => {
-    // If no settings are set
-    if (isEmpty(items)) {
-      items = {
-        translateinto: {},
-        uniquetab: 'popup',
-      };
-      chrome.storage.sync.set(items);
-    }
-
-    // Check the checkbox of the window opening
-    if (items.uniquetab === 'yep') $('#uniquetab').checked = true;
-    if (items.uniquetab === '') $('#varioustabs').checked = true;
-    if (items.uniquetab === 'panel' || items.uniquetab === 'popup')
-      $('#popup').checked = true;
-
-    // Add event listeners for certain buttons and links
-    $('#save').addEventListener('click', _ => {
-      saveOptions(true);
+  constructor() {
+    super();
+    this._storageData = undefined;
+    this.updateStorageData();
+    chrome.storage.onChanged.addListener((changes, areaName) => {
+      if (areaName == 'sync') this.updateStorageData();
     });
-
-    // Save automatically
-    $all('input[type="radio"]').forEach(radio => {
-      radio.addEventListener('change', _ => {
-        saveOptions();
-      });
-    });
-
-    // Print selected language list
-    var languages = items.translateinto;
-
-    if (languages) {
-      for (var language_id of Object.keys(languages)) {
-        var language = languages[language_id];
-        var el = document.createElement('li');
-        el.setAttribute('data-language', language);
-        el.setAttribute('data-id', language);
-        el.innerHTML = isoLangs[language]['name'] + ' (' +
-            isoLangs[language]['nativeName'] + ')' +
-            '<span data-language=\'' + language +
-            '\' class=\'delete\'>x</span>';
-        $('#languages').appendChild(el);
-        $('#languages li[data-language=' + language + '] .delete')
-            .addEventListener('click', function() {
-              $('#languages')
-                  .removeChild($(
-                      'li[data-language=' + this.getAttribute('data-language') +
-                      ']'));
-              printListModal();
-              // Save automatically
-              saveOptions();
-            });
-      }
-    }
-
-    // Initiate Sortable
-    sortable = new Sortable($('#languages'), {animation: 150});
-
-    // Handling The Dialog
-    $('#languages_add').addEventListener('click', _ => {
-      $('dialog#languages_add_dialog').showModal();
-      $('#select_language').focus();
-    });
-
-    $('#languages_add_cancel').addEventListener('click', _ => {
-      $('dialog#languages_add_dialog').close();
-    });
-
-    $('#languages_add_ok').addEventListener('click', _ => {
-      var el = document.createElement('li');
-      var language = $('#select_language').value;
-      if (inArray(language, sortable.toArray())) {
-        return;
-      }
-      el.setAttribute('data-language', language);
-      el.setAttribute('data-id', language);
-      el.innerHTML = isoLangs[language]['name'] + ' (' +
-          isoLangs[language]['nativeName'] + ')' +
-          '<span data-language=\'' + language + '\' class=\'delete\'>x</span>';
-      $('#languages').appendChild(el);
-      var selection = $('#select_language option[value=' + language + ']');
-      selection.parentNode.removeChild(selection);
-      $('#languages li[data-id=' + language + '] .delete')
-          .addEventListener('click', function() {
-            $('#languages')
-                .removeChild(
-                    $('li[data-language=' + this.getAttribute('data-language') +
-                      ']'));
-            printListModal();
-            // Save automatically
-            saveOptions();
-          });
-      $('dialog').close();
-
-      // Save automatically
-      saveOptions();
-    });
-
-    // About credits...
-    var content = $('dialog#credits_dialog .content_area');
-    credits.forEach(item => {
-      var div = document.createElement('div');
-      div.classList.add('entry');
-      if (item.url) {
-        var a = document.createElement('a');
-        a.classList.add('homepage');
-        a.href = item.url;
-        a.target = '_blank';
-        a.textContent = chrome.i18n.getMessage('options_credits_homepage');
-        div.append(a);
-      }
-
-      var h4 = document.createElement('h4');
-      h4.textContent = item.name;
-      div.append(h4);
-
-      if (item.author) {
-        var p = document.createElement('p');
-        p.classList.add('author');
-        p.textContent = chrome.i18n.getMessage('options_credits_by') + ' ' +
-            item.author + (item.license ? ' - ' + item.license : '');
-        div.append(p);
-      }
-      content.append(div);
-    });
-
-    var cList = document.getElementById('translators');
-    i18nCredits.forEach(contributor => {
-      var li = document.createElement('li');
-      var languages = [];
-      if (contributor.languages) {
-        contributor.languages.forEach(lang => {
-          languages.push(lang.name || 'undefined');
-        });
-      }
-
-      var name = document.createElement('span');
-      name.classList.add('name');
-      name.textContent = contributor.name || 'undefined';
-      li.append(name);
-
-      if (languages.length > 0) {
-        var languages = document.createTextNode(': ' + languages.join(', '));
-        li.append(languages);
-      }
-
-      cList.append(li);
-    });
-
-    window.onhashchange = function() {
-      if (location.hash == '#credits') {
-        var credits = document.getElementById('credits_dialog');
-        credits.showModal();
-        credits.querySelector('.scrollable').scrollTo(0, 0);
-        $('#credits_ok').focus();
-      }
-    };
-
-    if (location.hash == '#credits') {
-      $('dialog#credits_dialog').showModal();
-      $('#credits_ok').focus();
-    }
-
-    $('#credits_ok').addEventListener('click', _ => {
-      $('dialog#credits_dialog').close();
-    });
-    $('dialog#credits_dialog').addEventListener('close', _ => {
-      history.pushState(
-          '', document.title,
-          window.location.pathname + window.location.search);
-    });
-
-    // Print language list in the modal dialog
-    printListModal();
-  });
-}
-
-function saveOptions(close = false) {
-  var languages = document.getElementById('languages');
-  var options = {
-    uniquetab: '',
-    translateinto: {},
-  };
-
-  options.uniquetab = radioSelected('uniquetab');
-
-  var selected_languages = sortable.toArray();
-
-  var i = 0;
-  for (var language_id in selected_languages) {
-    var language = selected_languages[language_id];
-    options.translateinto[i] = language;
-    i++;
   }
 
-  chrome.storage.sync.set(options, function() {
-    var background = chrome.extension.getBackgroundPage();
+  static get styles() {
+    return [
+      SHARED_STYLES,
+      css`
+        :host {
+          display: block;
+          padding: 10px;
+          margin: 14px 17px;
+          font-family: "Roboto", "Arial", sans-serif!important;
+        }
 
-    background.translator_tab = false;
-    background.translator_window = false;
-    if (close) window.close();
-  });
-}
+        #credits_container {
+          position: absolute;
+          top: 0px;
+          inset-inline-end: 50px;
+          background: rgb(195, 235, 204);
+          border: solid 1px rgb(139, 139, 139);
+          border-top: 0;
+          border-radius: 0px 0px 5px 5px;
+        }
 
-function radioSelected(a) {
-  var elements = document.getElementsByName(a);
-
-  for (var i = 0; i < elements.length; i++)
-    if (elements[i].checked) return elements[i].value;
-}
-
-function inArray(needle, haystack) {
-  var length = haystack.length;
-  for (var i = 0; i < length; i++) {
-    if (haystack[i] == needle) return true;
+        #credits_container button#credits {
+          color: green!important;
+          margin: 0 5px;
+          padding: 1px 3px;
+          text-decoration: underline;
+          cursor: pointer;
+        }
+      `,
+    ];
   }
-  return false;
-}
 
-window.addEventListener('load', init);
+  render() {
+    return html`
+      <div id="credits_container">
+        <button
+            @click="${this.showCredits}" id="credits"
+            class="notbtn" tabindex="0" role="button">
+          ${msg('options_credits')}
+        </button>
+      </div>
+      <h1 id="welcome">${msg('options_welcome')}</h1>
+      <p id="introduction">${msg('options_introduction')}</p>
+      <options-editor .storageData=${this._storageData}></options-editor>
+      <credits-dialog></credits-dialog>
+    `;
+  }
+
+  updateStorageData() {
+    chrome.storage.sync.get(null, items => {
+      // If no settings are set
+      if (Object.keys(items).length === 0) {
+        items = {
+          translateinto: {},
+          uniquetab: 'popup',
+        };
+        chrome.storage.sync.set(items);
+      }
+      this._storageData = items;
+    });
+  }
+
+  showCredits() {
+    const e =
+        new CustomEvent('show-credits-dialog', {bubbles: true, composed: true});
+    this.renderRoot.querySelector('credits-dialog').dispatchEvent(e);
+  }
+}
+customElements.define('options-page', OptionsPage);
diff --git a/src/options/shared/dialog-styles.js b/src/options/shared/dialog-styles.js
new file mode 100644
index 0000000..8d50f1a
--- /dev/null
+++ b/src/options/shared/dialog-styles.js
@@ -0,0 +1,35 @@
+import {css} from 'lit';
+
+export const DIALOG_STYLES = css`
+  dialog {
+    padding: 0;
+    border: 1px solid rgba(0, 0, 0, 0.3);
+    border-radius: 6px;
+    box-shadow: 0 3px 7px rgba(0, 0, 0, 0.3);
+  }
+
+
+  dialog h3 {
+    margin-bottom: 10px;
+  }
+
+  dialog::backdrop {
+    position: fixed;
+    top: 0;
+    left: 0;
+    right: 0;
+    bottom: 0;
+    background-color: rgba(0, 0, 0, 0.5);
+  }
+
+  .scrollable {
+    padding: 1em;
+    overflow-y: auto;
+  }
+
+  .action_buttons {
+    border-top: 1px solid #ccc;
+    padding: 1em;
+    text-align: end;
+  }
+`;
diff --git a/src/options/shared/shared-styles.js b/src/options/shared/shared-styles.js
new file mode 100644
index 0000000..40794ec
--- /dev/null
+++ b/src/options/shared/shared-styles.js
@@ -0,0 +1,344 @@
+import {css} from 'lit';
+
+export const SHARED_STYLES = css`
+  button:not(.notbtn),
+  input,
+  select,
+  option {
+    font-size: 13px !important;
+  }
+
+  button.notbtn {
+    appearance: none;
+    background: none;
+    border: none;
+    border-radius: 0;
+    font: inherit;
+    padding: 0;
+  }
+
+  h1, h2, h3 {
+    user-select: none;
+    font-weight: normal;
+    line-height: 1;
+  }
+
+  h1 {
+    text-align: center;
+    font-size: 30px;
+  }
+
+  h2 {
+    font-size: 20px;
+    margin-bottom: 12px;
+  }
+
+  /* Copy of Chrome stylesheet (widgets.css), adapted by not applying styles
+   * for buttons with the class |nobtn|.
+   **/
+
+  /* Copyright (c) 2012 The Chromium Authors. All rights reserved.
+   * Use of this source code is governed by a BSD-style license that can be
+   * found in https://chromium.googlesource.com/chromium/src/+/master/LICENSE */
+
+  /* This file defines styles for form controls. The order of rule blocks is
+   * important as there are some rules with equal specificity that rely on order
+   * as a tiebreaker. These are marked with OVERRIDE. */
+
+  /* Default state **************************************************************/
+
+  :-webkit-any(button:not(.notbtn),
+               input[type='button'],
+               input[type='submit']):not(.custom-appearance):not(.link-button),
+  select,
+  input[type='checkbox'],
+  input[type='radio'] {
+    -webkit-appearance: none;
+    -webkit-user-select: none;
+    background-image: -webkit-linear-gradient(#ededed, #ededed 38%, #dedede);
+    border: 1px solid rgba(0, 0, 0, 0.25);
+    border-radius: 2px;
+    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.08),
+        inset 0 1px 2px rgba(255, 255, 255, 0.75);
+    color: #444;
+    font: inherit;
+    margin: 0 1px 0 0;
+    outline: none;
+    text-shadow: 0 1px 0 rgb(240, 240, 240);
+  }
+
+  :-webkit-any(button:not(.notbtn),
+               input[type='button'],
+               input[type='submit']):not(.custom-appearance):not(.link-button),
+  select {
+    min-height: 2em;
+    min-width: 4em;
+
+  }
+
+  :-webkit-any(button:not(.notbtn),
+               input[type='button'],
+               input[type='submit']):not(.custom-appearance):not(.link-button) {
+    -webkit-padding-end: 10px;
+    -webkit-padding-start: 10px;
+  }
+
+  select {
+    -webkit-appearance: none;
+    -webkit-padding-end: 20px;
+    -webkit-padding-start: 6px;
+    /* OVERRIDE */
+    background-image: -webkit-image-set(url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABMAAAAICAQAAACxSAwfAAAAUklEQVQY02P4z0AMRGZGMaShwCisyhITmb8huMzfEhOxKvuvsGAh208Ik+3ngoX/FbBbClcIUcSAw21QhXxfIIrwKAMpfNsEUYRXGVCEFc6CQwBqq4CCCtU4VgAAAABJRU5ErkJggg==') 1x, url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACcAAAAQCAQAAAA/1a6rAAAAQUlEQVR4Xu3MsQnAMBAEMI1+myf9gw0+3ASCenmu+mQn2yGn3S4Mp906DEW3CEPfzTD03QxD380w3OmIUHe9v+u9QwAt93yns5cAAAAASUVORK5CYII=') 2x),
+        -webkit-linear-gradient(#ededed, #ededed 38%, #dedede);
+    background-position: right center;
+    background-repeat: no-repeat;
+  }
+
+  html[dir='rtl'] select {
+    background-position: center left;
+  }
+
+  input[type='checkbox'] {
+
+  bottom: 2px;
+    height: 13px;
+    position: relative;
+    vertical-align: middle;
+    width: 13px;
+  }
+
+  input[type='radio'] {
+    /* OVERRIDE */
+    border-radius: 100%;
+    bottom: 1px;
+    height: 15px;
+    position: relative;
+    vertical-align: middle;
+    width: 15px;
+  }
+
+  /* TODO(estade): add more types here? */
+  input[type='number'],
+  input[type='password'],
+  input[type='search'],
+  input[type='text'],
+  input[type='url'],
+  input:not([type]),
+  textarea {
+    border: 1px solid #bfbfbf;
+    border-radius: 2px;
+    box-sizing: border-box;
+    color: #444;
+    font: inherit;
+    margin: 0;
+    /* Use min-height to accommodate addditional padding for touch as needed. */
+    min-height: 2em;
+    padding: 3px;
+    outline: none;
+  /* For better alignment between adjacent buttons and inputs. */
+    padding-bottom: 4px;
+  }
+
+  input[type='search'] {
+    -webkit-appearance: textfield;
+    /* NOTE: Keep a relatively high min-width for this so we don't obscure the end
+     * of the default text in relatively spacious languages (i.e. German). */
+    min-width: 160px;
+  }
+
+  /* Remove when https://bugs.webkit.org/show_bug.cgi?id=51499 is fixed.
+   * TODO(dbeam): are there more types that would benefit from this? */
+  input[type='search']::-webkit-textfield-decoration-container {
+    direction: inherit;
+  }
+
+  /* Checked ********************************************************************/
+
+  input[type='checkbox']:checked::before {
+    -webkit-user-select: none;
+    background-image: -webkit-image-set(url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAsAAAALCAQAAAADpb+tAAAAaElEQVR4Xl3PIQoCQQCF4Y8JW42D1bDZ4iVEjDbxFpstYhC7eIVBZHkXFGw734sv/TqDQQ8Xb1udja/I8igeIm7Aygj2IpoKTGZnVRNxAHYi4iPiDlA9xX+aNQDFySziqDN6uSp6y7ofEMwZ05uUZRkAAAAASUVORK5CYII=') 1x, url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABYAAAAWCAQAAABuvaSwAAAAvElEQVR4XrXPMUrDYBzG4UeRZnAQnFxq3XT3AsVABm8QPIHQIeAJuoqb2s1BcHAIin4HVLqEvx9NQgb5rc/wvn4mNBUbqlKDcezCp6Qexxx7lbapx/CBe6mrHsYrKXQ7hKtIre1nOD/W9eiQiK80inis680JEc+1kien+TEfzom4sJG2aZXxmG9LIqaRerohx6V2J72zl2NY2OTUgxm7MEU25sURfZg4590Zw5iFZ8mXS0ZwN+eaPjyh/8O/H7bzPJ5NOo0AAAAASUVORK5CYII=') 2x);
+    background-size: 100% 100%;
+    content: '';
+    display: block;
+    height: 100%;
+    width: 100%;
+  }
+
+  input[type='radio']:checked::before {
+    background-color: #666;
+    border-radius: 100%;
+    bottom: 3px;
+    content: '';
+    display: block;
+    left: 3px;
+    position: absolute;
+    right: 3px;
+    top: 3px;
+  }
+
+  /* Hover **********************************************************************/
+
+  :enabled:hover:-webkit-any(
+      select,
+      input[type='checkbox'],
+      input[type='radio'],
+      :-webkit-any(
+          button:not(.notbtn),
+          input[type='button'],
+          input[type='submit']):not(.custom-appearance):not(.link-button)) {
+    background-image: -webkit-linear-gradient(#f0f0f0, #f0f0f0 38%, #e0e0e0);
+    border-color: rgba(0, 0, 0, 0.3);
+    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.12),
+        inset 0 1px 2px rgba(255, 255, 255, 0.95);
+    color: black;
+  }
+
+  :enabled:hover:-webkit-any(select) {
+    /* OVERRIDE */
+    background-image: -webkit-image-set(url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABMAAAAICAQAAACxSAwfAAAAUklEQVQY02P4z0AMRGZGMaShwCisyhITmb8huMzfEhOxKvuvsGAh208Ik+3ngoX/FbBbClcIUcSAw21QhXxfIIrwKAMpfNsEUYRXGVCEFc6CQwBqq4CCCtU4VgAAAABJRU5ErkJggg==') 1x, url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACcAAAAQCAQAAAA/1a6rAAAAQUlEQVR4Xu3MsQnAMBAEMI1+myf9gw0+3ASCenmu+mQn2yGn3S4Mp906DEW3CEPfzTD03QxD380w3OmIUHe9v+u9QwAt93yns5cAAAAASUVORK5CYII=') 2x),
+        -webkit-linear-gradient(#f0f0f0, #f0f0f0 38%, #e0e0e0);
+  }
+
+  /* Active *********************************************************************/
+
+  :enabled:active:-webkit-any(
+      select,
+      input[type='checkbox'],
+      input[type='radio'],
+      :-webkit-any(
+          button:not(.notbtn),
+          input[type='button'],
+          input[type='submit']):not(.custom-appearance):not(.link-button)) {
+    background-image: -webkit-linear-gradient(#e7e7e7, #e7e7e7 38%, #d7d7d7);
+    box-shadow: none;
+    text-shadow: none;
+  }
+
+  :enabled:active:-webkit-any(select) {
+    /* OVERRIDE */
+    background-image: -webkit-image-set(url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABMAAAAICAQAAACxSAwfAAAAUklEQVQY02P4z0AMRGZGMaShwCisyhITmb8huMzfEhOxKvuvsGAh208Ik+3ngoX/FbBbClcIUcSAw21QhXxfIIrwKAMpfNsEUYRXGVCEFc6CQwBqq4CCCtU4VgAAAABJRU5ErkJggg==') 1x, url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACcAAAAQCAQAAAA/1a6rAAAAQUlEQVR4Xu3MsQnAMBAEMI1+myf9gw0+3ASCenmu+mQn2yGn3S4Mp906DEW3CEPfzTD03QxD380w3OmIUHe9v+u9QwAt93yns5cAAAAASUVORK5CYII=') 2x),
+        -webkit-linear-gradient(#e7e7e7, #e7e7e7 38%, #d7d7d7);
+  }
+
+  /* Disabled *******************************************************************/
+
+  :disabled:-webkit-any(
+      button:not(.notbtn),
+      input[type='button'],
+      input[type='submit']):not(.custom-appearance):not(.link-button),
+  select:disabled {
+    background-image: -webkit-linear-gradient(#f1f1f1, #f1f1f1 38%, #e6e6e6);
+    border-color: rgba(80, 80, 80, 0.2);
+    box-shadow: 0 1px 0 rgba(80, 80, 80, 0.08),
+        inset 0 1px 2px rgba(255, 255, 255, 0.75);
+    color: #aaa;
+  }
+
+  select:disabled {
+    /* OVERRIDE */
+    background-image: -webkit-image-set(url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABMAAAAICAQAAACxSAwfAAAASklEQVQY02P4z0AMRGZGMaShwCisyhITG/4jw8RErMr+KyxYiFC0YOF/BeyWIikEKWLA4Ta4QogiPMpACt82QRThVQYUYYWz4BAAGr6Ii6kEPacAAAAASUVORK5CYII=') 1x, url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACYAAAAQCAQAAADQF8WVAAAARElEQVR4Xu3MsQ0AIAwEsYx+m4fySsgLOuTe1Re9z4De4DzbdVDnmZ0ENcrsZJVkdoIKMzurMLOzSjNhlWfCapBlfpZbeMFeGdxKIEQAAAAASUVORK5CYII=') 2x),
+        -webkit-linear-gradient(#f1f1f1, #f1f1f1 38%, #e6e6e6);
+  }
+
+  input:disabled:-webkit-any([type='checkbox'],
+                             [type='radio']) {
+    opacity: .75;
+  }
+
+  input:disabled:-webkit-any([type='password'],
+                             [type='search'],
+                             [type='text'],
+                             [type='url'],
+                             :not([type])) {
+    color: #999;
+  }
+
+  /* Focus **********************************************************************/
+
+  :enabled:focus:-webkit-any(
+      select,
+      input[type='checkbox'],
+      input[type='number'],
+      input[type='password'],
+      input[type='radio'],
+      input[type='search'],
+      input[type='text'],
+      input[type='url'],
+      input:not([type]),
+      :-webkit-any(
+           button:not(.notbtn),
+           input[type='button'],
+           input[type='submit']):not(.custom-appearance):not(.link-button)) {
+    /* OVERRIDE */
+    -webkit-transition: border-color 200ms;
+    /* We use border color because it follows the border radius (unlike outline).
+     * This is particularly noticeable on mac. */
+    border-color: rgb(77, 144, 254);
+    outline: none;
+  }
+
+  /* Link buttons ***************************************************************/
+
+  .link-button {
+    -webkit-box-shadow: none;
+    background: transparent none;
+    border: none;
+    color: rgb(17, 85, 204);
+    cursor: pointer;
+    /* Input elements have -webkit-small-control which can override the body font.
+     * Resolve this by using 'inherit'. */
+    font: inherit;
+    margin: 0;
+    padding: 0;
+  }
+
+  .link-button:hover {
+    text-decoration: underline;
+  }
+
+  .link-button:active {
+    color: rgb(5, 37, 119);
+    text-decoration: underline;
+  }
+
+  .link-button[disabled] {
+    color: #999;
+    cursor: default;
+    text-decoration: none;
+  }
+
+  /* Checkbox/radio helpers ******************************************************
+   *
+   * .checkbox and .radio classes wrap labels. Checkboxes and radios should use
+   * these classes with the markup structure:
+   *
+   *   <div class="checkbox">
+   *     <label>
+   *       <input type="checkbox"></input>
+   *       <span>
+   *     </label>
+   *   </div>
+   */
+
+  :-webkit-any(.checkbox, .radio) label {
+    /* Don't expand horizontally: <http://crbug.com/112091>. */
+    display: -webkit-inline-box;
+    padding-bottom: 7px;
+    padding-top: 7px;
+  }
+
+  :-webkit-any(.checkbox, .radio) label input ~ span {
+    -webkit-margin-start: 0.6em;
+    -webkit-user-select: none;
+    /* Make sure long spans wrap at the same horizontal position they start. */
+    display: block;
+  }
+
+  :-webkit-any(.checkbox, .radio) label:hover {
+    color: black;
+  }
+
+  label > input:disabled:-webkit-any([type='checkbox'], [type='radio']) ~ span {
+    color: #999;
+  }
+`;
diff --git a/src/static/css/options.css b/src/static/css/options.css
deleted file mode 100644
index 1a81c76..0000000
--- a/src/static/css/options.css
+++ /dev/null
@@ -1,205 +0,0 @@
-/*@import url("widgets.css");*/
-
-html {
-  direction: __MSG_@@bidi_dir__;
-}
-
-body {
-  padding: 10px;
-  font-family: "Roboto", "Arial", sans-serif !important;
-  background-color: #BBDEFB;
-  background-repeat: repeat;
-  background-position: left top;
-  font-size: 90%;
-  cursor: default;
-  min-width: 400px;
-}
-
-h1 {
-  text-align: center;
-  font-size: 30px;
-}
-
-h2 {
-  font-size: 20px;
-}
-
-#languages_container {
-  width: 300px;
-  height: 250px;
-  border: 1px solid #ccc;
-  background-color: #E3F2FD;
-  overflow: auto;
-}
-
-#languages {
-  list-style: none;
-  margin: 0;
-  padding: 0;
-}
-
-#languages li {
-  padding: 15px;
-  border-bottom: 1px dashed #ddd;
-  background-color: #EEF7FD;
-  cursor: move;
-  -webkit-user-select: none;
-}
-
-#languages li.sortable-ghost {
-  background-color: #E3F2FD;
-}
-
-#languages li .delete {
-  font-size: 14px;
-  float: __MSG_@@bidi_end_edge__;
-  cursor: pointer;
-  color: red;
-}
-
-#languages_footer {
-  width: 300px;
-  height: 35px;
-  background-color: #fff;
-  border: 1px solid #ccc;
-  border-top: 0;
-}
-
-button,
-input,
-select,
-option {
-  font-size: 13px !important;
-}
-
-#languages_add {
-  margin-__MSG_@@bidi_start_edge__: 4px;
-  margin-top: 4px;
-}
-
-#save {
-  display: block;
-  margin: 18px auto;
-}
-
-/* Dialog */
-dialog#languages_add_dialog {
-  position: fixed;
-  top: 50%;
-  left: 50%;
-  margin-left: -216px;
-  margin-top: -91px;
-  height: 150px;
-  width: 400px;
-  border: 1px solid rgba(0, 0, 0, 0.3);
-  border-radius: 6px;
-  box-shadow: 0 3px 7px rgba(0, 0, 0, 0.3);
-}
-
-dialog h3 {
-  margin-bottom: 10px;
-}
-
-dialog #language_label {
-  font-size: 12px;
-}
-
-dialog select {
-  width: 100%;
-}
-
-dialog#languages_add_dialog .action_buttons {
-  margin-top: 10px;
-  float: __MSG_@@bidi_end_edge__;
-}
-
-dialog::backdrop {
-  position: fixed;
-  top: 0;
-  left: 0;
-  right: 0;
-  bottom: 0;
-  background-color: rgba(0, 0, 0, 0.5);
-}
-
-/* Credits */
-#credits_container {
-  position: absolute;
-  top: 0px;
-  __MSG_@@bidi_end_edge__: 50px;
-  background: rgb(195, 235, 204);
-  border: solid 1px rgb(139, 139, 139);
-  border-top: 0;
-  border-radius: 0px 0px 5px 5px;
-}
-
-#credits_container a {
-  color: green !important;
-  margin: 0 5px;
-}
-
-dialog#credits_dialog {
-  position: fixed;
-  top: 50%;
-  left: 50%;
-  margin-left: -216px;
-  margin-top: -231px;
-  padding: 0;
-  height: 430px;
-  width: 400px;
-  border: 1px solid rgba(0, 0, 0, 0.3);
-  border-radius: 6px;
-  box-shadow: 0 3px 7px rgba(0, 0, 0, 0.3);
-}
-
-dialog#credits_dialog[open] {
-  display: flex;
-  flex-direction: column;
-}
-
-dialog#credits_dialog .scrollable {
-  padding: 1em;
-  overflow-y: auto;
-}
-
-dialog#credits_dialog .content_area h4 {
-  margin-bottom: 0px;
-}
-
-dialog#credits_dialog .entry {
-  position: relative;
-}
-
-dialog#credits_dialog .entry a.homepage {
-  position: absolute;
-  __MSG_@@bidi_end_edge__: 16px;
-  font-size: 14px;
-}
-
-dialog#credits_dialog p,
-dialog#credits_dialog span {
-  font-size: 14px;
-}
-
-dialog#credits_dialog p.author {
-  margin-top: 7px;
-}
-
-dialog#credits_dialog #translators .name {
-  font-weight: bold;
-}
-
-dialog#credits_dialog .action_buttons {
-  border-top: 1px solid #ccc;
-  padding: 1em;
-  text-align: __MSG_@@bidi_end_edge__;
-}
-
-dialog#credits_dialog .createdby {
-  font-style: italic;
-}
-
-#otheroptions p {
-  margin-top: 0;
-  margin-bottom: 0;
-}
diff --git a/src/static/css/widgets.css b/src/static/css/widgets.css
deleted file mode 100644
index c988a27..0000000
--- a/src/static/css/widgets.css
+++ /dev/null
@@ -1,304 +0,0 @@
-/* Copyright (c) 2012 The Chromium Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in https://chromium.googlesource.com/chromium/src/+/master/LICENSE */
-
-/* This file defines styles for form controls. The order of rule blocks is
- * important as there are some rules with equal specificity that rely on order
- * as a tiebreaker. These are marked with OVERRIDE. */
-
-/* Default state **************************************************************/
-
-:-webkit-any(button,
-             input[type='button'],
-             input[type='submit']):not(.custom-appearance):not(.link-button),
-select,
-input[type='checkbox'],
-input[type='radio'] {
-  -webkit-appearance: none;
-  -webkit-user-select: none;
-  background-image: -webkit-linear-gradient(#ededed, #ededed 38%, #dedede);
-  border: 1px solid rgba(0, 0, 0, 0.25);
-  border-radius: 2px;
-  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.08),
-      inset 0 1px 2px rgba(255, 255, 255, 0.75);
-  color: #444;
-  font: inherit;
-  margin: 0 1px 0 0;
-  outline: none;
-  text-shadow: 0 1px 0 rgb(240, 240, 240);
-}
-
-:-webkit-any(button,
-             input[type='button'],
-             input[type='submit']):not(.custom-appearance):not(.link-button),
-select {
-  min-height: 2em;
-  min-width: 4em;
-
-}
-
-:-webkit-any(button,
-             input[type='button'],
-             input[type='submit']):not(.custom-appearance):not(.link-button) {
-  -webkit-padding-end: 10px;
-  -webkit-padding-start: 10px;
-}
-
-select {
-  -webkit-appearance: none;
-  -webkit-padding-end: 20px;
-  -webkit-padding-start: 6px;
-  /* OVERRIDE */
-  background-image: -webkit-image-set(url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABMAAAAICAQAAACxSAwfAAAAUklEQVQY02P4z0AMRGZGMaShwCisyhITmb8huMzfEhOxKvuvsGAh208Ik+3ngoX/FbBbClcIUcSAw21QhXxfIIrwKAMpfNsEUYRXGVCEFc6CQwBqq4CCCtU4VgAAAABJRU5ErkJggg==') 1x, url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACcAAAAQCAQAAAA/1a6rAAAAQUlEQVR4Xu3MsQnAMBAEMI1+myf9gw0+3ASCenmu+mQn2yGn3S4Mp906DEW3CEPfzTD03QxD380w3OmIUHe9v+u9QwAt93yns5cAAAAASUVORK5CYII=') 2x),
-      -webkit-linear-gradient(#ededed, #ededed 38%, #dedede);
-  background-position: right center;
-  background-repeat: no-repeat;
-}
-
-html[dir='rtl'] select {
-  background-position: center left;
-}
-
-input[type='checkbox'] {
-
-bottom: 2px;
-  height: 13px;
-  position: relative;
-  vertical-align: middle;
-  width: 13px;
-}
-
-input[type='radio'] {
-  /* OVERRIDE */
-  border-radius: 100%;
-  bottom: 1px;
-  height: 15px;
-  position: relative;
-  vertical-align: middle;
-  width: 15px;
-}
-
-/* TODO(estade): add more types here? */
-input[type='number'],
-input[type='password'],
-input[type='search'],
-input[type='text'],
-input[type='url'],
-input:not([type]),
-textarea {
-  border: 1px solid #bfbfbf;
-  border-radius: 2px;
-  box-sizing: border-box;
-  color: #444;
-  font: inherit;
-  margin: 0;
-  /* Use min-height to accommodate addditional padding for touch as needed. */
-  min-height: 2em;
-  padding: 3px;
-  outline: none;
-/* For better alignment between adjacent buttons and inputs. */
-  padding-bottom: 4px;
-}
-
-input[type='search'] {
-  -webkit-appearance: textfield;
-  /* NOTE: Keep a relatively high min-width for this so we don't obscure the end
-   * of the default text in relatively spacious languages (i.e. German). */
-  min-width: 160px;
-}
-
-/* Remove when https://bugs.webkit.org/show_bug.cgi?id=51499 is fixed.
- * TODO(dbeam): are there more types that would benefit from this? */
-input[type='search']::-webkit-textfield-decoration-container {
-  direction: inherit;
-}
-
-/* Checked ********************************************************************/
-
-input[type='checkbox']:checked::before {
-  -webkit-user-select: none;
-  background-image: -webkit-image-set(url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAsAAAALCAQAAAADpb+tAAAAaElEQVR4Xl3PIQoCQQCF4Y8JW42D1bDZ4iVEjDbxFpstYhC7eIVBZHkXFGw734sv/TqDQQ8Xb1udja/I8igeIm7Aygj2IpoKTGZnVRNxAHYi4iPiDlA9xX+aNQDFySziqDN6uSp6y7ofEMwZ05uUZRkAAAAASUVORK5CYII=') 1x, url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABYAAAAWCAQAAABuvaSwAAAAvElEQVR4XrXPMUrDYBzG4UeRZnAQnFxq3XT3AsVABm8QPIHQIeAJuoqb2s1BcHAIin4HVLqEvx9NQgb5rc/wvn4mNBUbqlKDcezCp6Qexxx7lbapx/CBe6mrHsYrKXQ7hKtIre1nOD/W9eiQiK80inis680JEc+1kien+TEfzom4sJG2aZXxmG9LIqaRerohx6V2J72zl2NY2OTUgxm7MEU25sURfZg4590Zw5iFZ8mXS0ZwN+eaPjyh/8O/H7bzPJ5NOo0AAAAASUVORK5CYII=') 2x);
-  background-size: 100% 100%;
-  content: '';
-  display: block;
-  height: 100%;
-  width: 100%;
-}
-
-input[type='radio']:checked::before {
-  background-color: #666;
-  border-radius: 100%;
-  bottom: 3px;
-  content: '';
-  display: block;
-  left: 3px;
-  position: absolute;
-  right: 3px;
-  top: 3px;
-}
-
-/* Hover **********************************************************************/
-
-:enabled:hover:-webkit-any(
-    select,
-    input[type='checkbox'],
-    input[type='radio'],
-    :-webkit-any(
-        button,
-        input[type='button'],
-        input[type='submit']):not(.custom-appearance):not(.link-button)) {
-  background-image: -webkit-linear-gradient(#f0f0f0, #f0f0f0 38%, #e0e0e0);
-  border-color: rgba(0, 0, 0, 0.3);
-  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.12),
-      inset 0 1px 2px rgba(255, 255, 255, 0.95);
-  color: black;
-}
-
-:enabled:hover:-webkit-any(select) {
-  /* OVERRIDE */
-  background-image: -webkit-image-set(url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABMAAAAICAQAAACxSAwfAAAAUklEQVQY02P4z0AMRGZGMaShwCisyhITmb8huMzfEhOxKvuvsGAh208Ik+3ngoX/FbBbClcIUcSAw21QhXxfIIrwKAMpfNsEUYRXGVCEFc6CQwBqq4CCCtU4VgAAAABJRU5ErkJggg==') 1x, url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACcAAAAQCAQAAAA/1a6rAAAAQUlEQVR4Xu3MsQnAMBAEMI1+myf9gw0+3ASCenmu+mQn2yGn3S4Mp906DEW3CEPfzTD03QxD380w3OmIUHe9v+u9QwAt93yns5cAAAAASUVORK5CYII=') 2x),
-      -webkit-linear-gradient(#f0f0f0, #f0f0f0 38%, #e0e0e0);
-}
-
-/* Active *********************************************************************/
-
-:enabled:active:-webkit-any(
-    select,
-    input[type='checkbox'],
-    input[type='radio'],
-    :-webkit-any(
-        button,
-        input[type='button'],
-        input[type='submit']):not(.custom-appearance):not(.link-button)) {
-  background-image: -webkit-linear-gradient(#e7e7e7, #e7e7e7 38%, #d7d7d7);
-  box-shadow: none;
-  text-shadow: none;
-}
-
-:enabled:active:-webkit-any(select) {
-  /* OVERRIDE */
-  background-image: -webkit-image-set(url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABMAAAAICAQAAACxSAwfAAAAUklEQVQY02P4z0AMRGZGMaShwCisyhITmb8huMzfEhOxKvuvsGAh208Ik+3ngoX/FbBbClcIUcSAw21QhXxfIIrwKAMpfNsEUYRXGVCEFc6CQwBqq4CCCtU4VgAAAABJRU5ErkJggg==') 1x, url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACcAAAAQCAQAAAA/1a6rAAAAQUlEQVR4Xu3MsQnAMBAEMI1+myf9gw0+3ASCenmu+mQn2yGn3S4Mp906DEW3CEPfzTD03QxD380w3OmIUHe9v+u9QwAt93yns5cAAAAASUVORK5CYII=') 2x),
-      -webkit-linear-gradient(#e7e7e7, #e7e7e7 38%, #d7d7d7);
-}
-
-/* Disabled *******************************************************************/
-
-:disabled:-webkit-any(
-    button,
-    input[type='button'],
-    input[type='submit']):not(.custom-appearance):not(.link-button),
-select:disabled {
-  background-image: -webkit-linear-gradient(#f1f1f1, #f1f1f1 38%, #e6e6e6);
-  border-color: rgba(80, 80, 80, 0.2);
-  box-shadow: 0 1px 0 rgba(80, 80, 80, 0.08),
-      inset 0 1px 2px rgba(255, 255, 255, 0.75);
-  color: #aaa;
-}
-
-select:disabled {
-  /* OVERRIDE */
-  background-image: -webkit-image-set(url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABMAAAAICAQAAACxSAwfAAAASklEQVQY02P4z0AMRGZGMaShwCisyhITG/4jw8RErMr+KyxYiFC0YOF/BeyWIikEKWLA4Ta4QogiPMpACt82QRThVQYUYYWz4BAAGr6Ii6kEPacAAAAASUVORK5CYII=') 1x, url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACYAAAAQCAQAAADQF8WVAAAARElEQVR4Xu3MsQ0AIAwEsYx+m4fySsgLOuTe1Re9z4De4DzbdVDnmZ0ENcrsZJVkdoIKMzurMLOzSjNhlWfCapBlfpZbeMFeGdxKIEQAAAAASUVORK5CYII=') 2x),
-      -webkit-linear-gradient(#f1f1f1, #f1f1f1 38%, #e6e6e6);
-}
-
-input:disabled:-webkit-any([type='checkbox'],
-                           [type='radio']) {
-  opacity: .75;
-}
-
-input:disabled:-webkit-any([type='password'],
-                           [type='search'],
-                           [type='text'],
-                           [type='url'],
-                           :not([type])) {
-  color: #999;
-}
-
-/* Focus **********************************************************************/
-
-:enabled:focus:-webkit-any(
-    select,
-    input[type='checkbox'],
-    input[type='number'],
-    input[type='password'],
-    input[type='radio'],
-    input[type='search'],
-    input[type='text'],
-    input[type='url'],
-    input:not([type]),
-    :-webkit-any(
-         button,
-         input[type='button'],
-         input[type='submit']):not(.custom-appearance):not(.link-button)) {
-  /* OVERRIDE */
-  -webkit-transition: border-color 200ms;
-  /* We use border color because it follows the border radius (unlike outline).
-   * This is particularly noticeable on mac. */
-  border-color: rgb(77, 144, 254);
-  outline: none;
-}
-
-/* Link buttons ***************************************************************/
-
-.link-button {
-  -webkit-box-shadow: none;
-  background: transparent none;
-  border: none;
-  color: rgb(17, 85, 204);
-  cursor: pointer;
-  /* Input elements have -webkit-small-control which can override the body font.
-   * Resolve this by using 'inherit'. */
-  font: inherit;
-  margin: 0;
-  padding: 0;
-}
-
-.link-button:hover {
-  text-decoration: underline;
-}
-
-.link-button:active {
-  color: rgb(5, 37, 119);
-  text-decoration: underline;
-}
-
-.link-button[disabled] {
-  color: #999;
-  cursor: default;
-  text-decoration: none;
-}
-
-/* Checkbox/radio helpers ******************************************************
- *
- * .checkbox and .radio classes wrap labels. Checkboxes and radios should use
- * these classes with the markup structure:
- *
- *   <div class="checkbox">
- *     <label>
- *       <input type="checkbox"></input>
- *       <span>
- *     </label>
- *   </div>
- */
-
-:-webkit-any(.checkbox, .radio) label {
-  /* Don't expand horizontally: <http://crbug.com/112091>. */
-  display: -webkit-inline-box;
-  padding-bottom: 7px;
-  padding-top: 7px;
-}
-
-:-webkit-any(.checkbox, .radio) label input ~ span {
-  -webkit-margin-start: 0.6em;
-  -webkit-user-select: none;
-  /* Make sure long spans wrap at the same horizontal position they start. */
-  display: block;
-}
-
-:-webkit-any(.checkbox, .radio) label:hover {
-  color: black;
-}
-
-label > input:disabled:-webkit-any([type='checkbox'], [type='radio']) ~ span {
-  color: #999;
-}
\ No newline at end of file
diff --git a/src/static/options.html b/src/static/options.html
index fa82672..acb2157 100644
--- a/src/static/options.html
+++ b/src/static/options.html
@@ -1,72 +1,21 @@
 <!DOCTYPE html>
 <html>
-
-<head>
-  <meta charset="UTF-8">
-  <title>Options</title>
-  <link rel="stylesheet" type="text/css" href="css/options.css">
-  <link href='http://fonts.googleapis.com/css?family=Roboto:400,700,700italic,400italic' rel='stylesheet' type='text/css'>
-</head>
-
-<body>
-  <div id="credits_container">
-    <a href="#credits" id="credits" data-i18n="credits"></a>
-  </div>
-
-  <h1 id="welcome" data-i18n="welcome"></h1>
-
-  <p id="introduction" data-i18n="introduction"></p>
-
-  <div id="languages_container">
-    <ul id="languages"></ul>
-  </div>
-  <div id="languages_footer">
-    <button id="languages_add" data-i18n="addlanguage_addbutton"></button>
-  </div>
-
-  <h2 id="otheroptionsheader" data-i18n="otheroptionsheader"></h2>
-
-  <div id="otheroptions">
-    <p><input type="radio" name="uniquetab" id="varioustabs" value=""> <label id="varioustabs_label" for="varioustabs" data-i18n="tabsoption_1"></label></p>
-    <p><input type="radio" name="uniquetab" id="uniquetab" value="yep"> <label id="uniquetab_label" for="uniquetab" data-i18n="tabsoption_2"></label></p>
-    <p><input type="radio" name="uniquetab" id="popup" value="popup"> <label id="popup_label" for="popup" data-i18n="tabsoption_3"></label></p>
-  </div>
-
-  <button id="save" data-i18n="savebutton"></button>
-
-  <dialog id="languages_add_dialog">
-    <h3 data-i18n="addlanguage"></h3>
-    <div class="content_area">
-      <label id="language_label" for="select_language" data-i18n="language_label"></label>
-      <select id="select_language"></select>
-    </div>
-    <div class="action_buttons">
-      <button id="languages_add_cancel" data-i18n="cancel"></button>
-      <button id="languages_add_ok" data-i18n="addlanguage_addbutton"></button>
-    </div>
-  </dialog>
-  <dialog id="credits_dialog">
-    <div class="scrollable">
-      <h3 data-i18n="credits"></h3>
-      <div class="entry createdby">
-        <div data-i18n="credits_createdby"></div>
-      </div>
-      <div class="entry">
-        <a href="https://gtranslate.avm99963.com/" class="homepage" target="_blank" data-i18n="credits_homepage"></a>
-        <h4 data-i18n="credits_translations"></h4>
-        <div data-i18n="credits_translations_paragraph"></div>
-        <ul id="translators"></ul>
-      </div>
-      <div class="content_area">
-      </div>
-    </div>
-    <div class="action_buttons">
-      <button id="credits_ok" data-i18n="ok"></button>
-    </div>
-  </dialog>
-
-  <script src="options.bundle.js"></script>
-  <script src="js/sortable.js"></script>
-</body>
-
+  <head>
+    <meta charset="UTF-8">
+    <title>Options</title>
+    <style>
+      body {
+        margin: 0;
+        padding: 0;
+        width: 470px;
+        font-size: 90%;
+        background-color: #BBDEFB;
+      }
+    </style>
+    <link href='http://fonts.googleapis.com/css?family=Roboto:400,700,700italic,400italic' rel='stylesheet' type='text/css'>
+  </head>
+  <body>
+    <options-page></options-page>
+    <script src="options.bundle.js"></script>
+  </body>
 </html>
diff --git a/templates/manifest.gjson b/templates/manifest.gjson
index bfba192..aa781cb 100644
--- a/templates/manifest.gjson
+++ b/templates/manifest.gjson
@@ -30,5 +30,6 @@
     "chrome_style": true
   },
   "browser_action": {},
-  "default_locale": "en"
+  "default_locale": "en",
+  "minimum_chrome_version": "86.0.4198.0"
 }