diff --git a/templates/tracker/field-detail-page.ezt b/templates/tracker/field-detail-page.ezt
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+++ b/templates/tracker/field-detail-page.ezt
@@ -0,0 +1,421 @@
+[define title]Field [field_def.field_name][end]
+[define category_css]css/ph_detail.css[end]
+[include "../framework/header.ezt" "showtabs"]
+
+<a href="/p/[projectname]/adminLabels">&lsaquo; Back to field list</a><br><br>
+
+
+<h4>Custom field</h4>
+
+<form action="detail.do" method="POST">
+<input type="hidden" name="token" value="[form_token]">
+<input type="hidden" name="field" value="[field_def.field_name]">
+
+<table cellspacing="8" class="rowmajor vt">
+  <tr>
+    <th width="1%">Name:</th>
+    <td>
+      [if-any uneditable_name]
+        <input type="hidden" name="name" value="[field_def.field_name]">
+        [field_def.field_name]
+      [else][if-any allow_edit]
+        <input name="name" value="[field_def.field_name]" size="30" class="acob">
+      [else]
+        [field_def.field_name]
+      [end][end]
+    </td>
+  </tr>
+
+  <tr>
+    <th>Description:</th>
+    <td>
+      [if-any allow_edit]
+        <textarea name="docstring" rows="4" cols="75">[field_def.docstring]</textarea>
+      [else]
+        [field_def.docstring]
+      [end]
+    </td>
+  </tr>
+
+  <tr>
+    <th>Type:</th>
+    [# TODO(jrobbins): make field types editable someday.]
+    <td>[field_def.type_name]</td>
+  </tr>
+
+  [is field_def.type_name "APPROVAL_TYPE"]
+    <tr>
+      <th>Approvers:</th>
+      <td>
+        [if-any allow_edit]
+          <input id="member_approvers" name="approver_names" size="75" value="[initial_approvers]"
+            autocomplete="off">
+          <span class="fielderror" style="margin-left:1em">
+          [if-any errors.approvers][errors.approvers][end]
+          </span>
+        [else]
+          [for field_def.approvers]
+            <div>[include "../framework/user-link.ezt" field_def.approvers]</div>
+          [end]
+        [end]
+      </td>
+    </tr>
+    <tr>
+      <th>Survey:</th>
+      <td>
+        [if-any allow_edit]
+          <textarea name="survey" rows="4" cols="75">[field_def.survey]</textarea>
+        [else]
+          <table cellspacing="4" cellpadding="0" style="padding: 2px; border:2px solid #eee">
+            [for field_def.survey_questions]
+              <tr><td>[field_def.survey_questions]</td></tr>
+            [end]
+          </table>
+        [end]
+      </td>
+    </tr>
+
+    [if-any approval_subfields]
+      <tr>
+        <th>Subfields:</th>
+        <td>
+          [for approval_subfields]
+            <div><a href="/p/[projectname]/fields/detail?field=[approval_subfields.field_name]">
+              [approval_subfields.field_name]
+            </a></div>
+          [end]
+        </td>
+      </tr>
+    [end]
+  [else]
+
+    <tr>
+      <th>Issue Gate field:</th>
+      <td>
+        [if-any field_def.is_phase_field]Yes[else]No[end]
+      </td>
+    </tr>
+
+    [is field_def.field_name "Type"][else]
+    <tr>
+      <th>Applicable:</th>
+      <td>When issue type is:
+        [if-any allow_edit]
+         [define oddball_applicability]Yes[end]
+          <select id="applicable_type" name="applicable_type">
+            <option value=""
+              [is initial_applicable_type ""]
+                selected="selected"
+                [define oddball_applicability]No[end]
+              [end]
+            >Anything</option>
+            <option disabled="disabled">----</option>
+            [for well_known_issue_types]
+              <option value="[well_known_issue_types]"
+                [is initial_applicable_type well_known_issue_types]
+                  selected="selected"
+                  [define oddball_applicability]No[end]
+                [end]
+              >[well_known_issue_types]</option>
+            [end]
+            [# If an oddball type was used, keep it.]
+            [is oddball_applicability "Yes"]
+              <option value="[initial_applicable_type]" selected="selected"
+              >[initial_applicable_type]</option>
+            [end]
+          </select>
+        [else]
+          [initial_applicable_type]
+        [end]
+        [# TODO(jrobbins): editable applicable_predicate.]
+      </td>
+    </tr>
+    [end]
+
+    <tr>
+      <th>Importance:</th>
+      <td>
+        [if-any allow_edit]
+          <select id="importance" name="importance">
+            <option value="required" [is field_def.importance "required"]selected[end]>Required when applicable</option>
+            <option value="normal" [is field_def.importance "normal"]selected[end]>Offered when applicable</option>
+            <option value="niche" [is field_def.importance "niche"]selected[end]>Under "Show all fields" when applicable</option>
+          </select>
+        [else]
+          [is field_def.importance "required"]Required when applicable[end]
+          [is field_def.importance "normal"]Offered when applicable[end]
+          [is field_def.importance "niche"]Under "Show all fields" when applicable[end]
+        [end]
+      </td>
+    </tr>
+
+    <tr>
+      <th>Multivalued:</th>
+      <td>
+        [if-any allow_edit]
+          <input type="checkbox" name="is_multivalued" class="acob"
+                 [if-any field_def.is_multivalued_bool]checked="checked"[end]>
+        [else]
+          [if-any field_def.is_multivalued_bool]Yes[else]No[end]
+        [end]
+      </td>
+    </tr>
+  [end]
+
+  [# TODO(jrobbins): dynamically display validation info as field type is edited.]
+  [is field_def.type_name "ENUM_TYPE"]
+    <tr>
+      <th>Choices:</th>
+      <td>
+        [if-any allow_edit]
+          <textarea name="choices" rows="10" cols="75" style="tab-size:18" [if-any allow_edit][else]disabled="disabled"[end]
+          >[initial_choices]</textarea>
+        [else]
+          <table cellspacing="4" cellpadding="0" style="padding: 2px; border:2px solid #eee">
+            [for field_def.choices]
+              <tr>
+                <td>[field_def.choices.name]</td>
+                <td>[if-any field_def.choices.docstring]= [end][field_def.choices.docstring]</td>
+              </tr>
+            [end]
+          </table>
+        [end]
+      </td>
+    </tr>
+  [end]
+
+  [is field_def.type_name "INT_TYPE"]
+    <tr id="int_row">
+      <th>Validation:</th>
+      <td>
+        Min value:
+        <input type="number" name="min_value" style="text-align:right; width: 4em"
+               value="[field_def.min_value]" class="acob"
+               [if-any allow_edit][else]disabled="disabled"[end]>
+
+        Max value:
+        <input type="number" name="max_value" style="text-align:right; width: 4em"
+               value="[field_def.max_value]" class="acob"
+               [if-any allow_edit][else]disabled="disabled"[end]>
+        <span class="fielderror" style="margin-left:1em">
+          [if-any errors.min_value][errors.min_value][end]</span><br>
+      </td>
+    </tr>
+  [end]
+
+  [is field_def.type_name "STR_TYPE"]
+    <tr id="str_row">
+      <th>Validation:</th>
+      <td>
+        Regex: <input type="text" name="regex" size="30" value="[field_def.regex]" class="acob"><br>
+        <span class="fielderror" style="margin-left:1em"
+            >[if-any errors.regex][errors.regex][end]</span>
+      </td>
+    </tr>
+  [end]
+
+  [is field_def.type_name "USER_TYPE"]
+    <tr id="user_row">
+      <th>Validation:</th>
+      <td>
+        <input type="checkbox" name="needs_member" id="needs_member" class="acob"
+               [if-any allow_edit][else]disabled="disabled"[end]
+               [if-any field_def.needs_member_bool]checked="checked"[end]>
+        <label for="needs_member">User must be a project member</label><br>
+        <span id="needs_perm_span" style="margin-left:1em">Required permission:
+          <input type="text" name="needs_perm" id="needs_perm" size="20"
+                 value="[field_def.needs_perm]" autocomplete="off" class="acob"
+                 [if-any allow_edit][else]disabled="disabled"[end]></span><br>
+      </td>
+    </tr>
+    <tr id="user_row2">
+      <th>Permissions:</th>
+      <td>
+        The users named in this field is granted this permission on this issue:<br>
+        [# TODO(jrobbins): one-click way to specify View vs. EditIssue vs. any custom perm.]
+        <input type="text" name="grants_perm" id="grants_perm" class="acob"
+               size="20" value="[field_def.grants_perm]" autocomplete="off"
+               [if-any allow_edit][else]disabled[end]>
+      </td>
+    </tr>
+    <tr id="user_row3">
+      <th>Notification:</th>
+      <td>
+        The users named in this field will be notified via email whenever:<br>
+        <select name="notify_on" [if-any allow_edit][else]disabled[end]
+                class="acrob">
+          <option value="never" [is field_def.notify_on "0"]selected="selected"[end]
+                  >No notifications</option>
+          <option value="any_comment" [is field_def.notify_on "1"]selected="selected"[end]
+                  >Any change or comment is added</option>
+        </select>
+      </td>
+    </tr>
+  [end]
+
+  [is field_def.type_name "DATE_TYPE"]
+    <tr id="date_row">
+      <th>Action:</th>
+      <td>
+        [if-any allow_edit]
+          <select name="date_action">
+            <option value="no_action" [is field_def.date_action_str "no_action"]selected="selected"[end]
+                    >No action</option>
+            [# TODO(jrobbins): owner-only option.]
+            <option value="ping_participants" [is field_def.date_action_str "ping_participants"]selected="selected"[end]
+                    >Post a comment and notify all issue participants</option>
+          </select>
+        [else]
+          [is field_def.date_action_str "no_action"]No action[end]
+          [# TODO(jrobbins): owner-only option.]
+          [is field_def.date_action_str "ping_participants"]Post a comment and notify all issue participants[end]
+        [end]
+      </td>
+    </tr>
+  [end]
+
+  [if-any field_def.is_approval_subfield]
+    <tr>
+      <th>Parent Approval:</th>
+      <td>
+        <a href="/p/[projectname]/fields/detail?field=[field_def.parent_approval_name]">
+          [field_def.parent_approval_name]
+        </a>
+      </td>
+    </tr>
+  [end]
+
+  <th>Admins:</th>
+    <td>
+      [if-any allow_edit]
+        <input id="member_admins" name="admin_names" size="75" value="[initial_admins]"
+               autocomplete="off" class="acob">
+        <span class="fielderror" style="margin-left:1em">
+            [if-any errors.field_admins][errors.field_admins][end]
+        </span>
+      [else]
+        [for field_def.admins]
+          <div>[include "../framework/user-link.ezt" field_def.admins]</div>
+        [end]
+      [end]
+    </td>
+  </tr>
+
+  [is field_def.type_name "APPROVAL_TYPE"][else]
+
+  <tr id="editors_restriction">
+    <th>Restriction
+      <i id="editors_tooltip" class="material-icons inline-icon" style="font-size:14px; vertical-align: text-bottom"
+        title="Project owners and field admins can always edit the values of a custom field.">
+      info_outline</i> :
+    </th>
+    <td style="display:flex; align-items:center">
+      [if-any allow_edit]
+        <input id="editors_checkbox" type="checkbox" name="is_restricted_field" class="acob"
+               [if-any field_def.is_restricted_field]checked="checked"[end]>
+        Restrict users that can edit values of this custom field.
+      [else]
+        [if-any field_def.is_restricted_field]Yes[else]No[end]
+      [end]
+    </td>
+  </tr>
+  <tr id="editors_input"
+      [if-any field_def.is_restricted_field][else]style="display:none"[end]>
+    <th>Editors:</th>
+    <td>
+      [if-any allow_edit]
+        <input id="member_editors" name="editor_names" size="75" value="[initial_editors]"
+               autocomplete="off" class="acob"
+               [if-any field_def.is_restricted_field][else]disabled[end]>
+        <span class="fielderror" style="margin-left:1em">
+            [if-any errors.field_editors][errors.field_editors][end]
+        </span>
+      [else]
+        [for field_def.editors]
+          <div>[include "../framework/user-link.ezt" field_def.editors]</div>
+        [end]
+      [end]
+    </td>
+  </tr>
+
+  [end]
+
+  <tr>
+    <td></td>
+    <td>
+      [if-any allow_edit]
+        <input type="submit" name="submit" value="Save changes">
+        <input type="submit" class="secondary" name="deletefield" value="Delete Field"
+               id="deletefield">
+      [end]
+    </td>
+  </tr>
+
+</table>
+</form>
+
+
+<script type="text/javascript" nonce="[nonce]">
+runOnLoad(function() {
+  var needs_perm_span = document.getElementById('needs_perm_span');
+  var needs_perm = document.getElementById('needs_perm');
+  var needs_member = document.getElementById('needs_member');
+  function enableNeedsPerm(enable) {
+    needs_perm_span.style.color = enable ? 'inherit' : '#999';
+    needs_perm.disabled = enable ? '' : 'disabled';
+    if (!enable) needs_perm.value = '';
+  }
+  [if-any allow_edit]
+    if (needs_perm)
+      enableNeedsPerm(needs_member.checked);
+  [end]
+
+  if ($("deletefield")) {
+    $("deletefield").addEventListener("click", function(event) {
+        var msg = ("Are you sure you want to delete [field_def.field_name]?\n" +
+                   "This operation cannot be undone. " +
+                   "[if-any approval_subfields]\nAll subfields will also be deleted.[end]" +
+                   "[is field_def.type_name "ENUM_TYPE"]\nEnum values will be retained on issues as labels.[end]");
+        if (!confirm(msg))
+          event.preventDefault();
+     });
+  }
+
+  [is field_def.type_name "APPROVAL_TYPE"][else]
+  //Enable editors input only when restricting the field.
+  document.getElementById('editors_checkbox').onchange = function() {
+    var member_editors = document.getElementById('member_editors');
+    var editors_input = document.getElementById('editors_input');
+    if (this.checked) {
+      editors_input.style.display = '';
+    } else {
+      editors_input.style.display = 'none';
+    }
+    member_editors.disabled = !this.checked;
+  };
+  [end]
+
+  var acobElements = document.getElementsByClassName("acob");
+  for (var i = 0; i < acobElements.length; ++i) {
+     var el = acobElements[[]i];
+     el.addEventListener("focus", function(event) {
+         _acrob(null);
+         _acof(event);
+     });
+  }
+
+  [is field_def.type_name "APPROVAL_TYPE"]
+  $('member_approvers').addEventListener("focus", function(event) {
+    _acof(event);
+  });
+  [end]
+
+  if ($("needs_member")) {
+    $("needs_member").addEventListener("change", function(event) {
+       enableNeedsPerm($("needs_member").checked);
+    });
+  }
+});
+</script>
+
+[include "../framework/footer.ezt"]