diff --git a/src/applications/settings/panel/PhabricatorSettingsPanelDisplayPreferences.php b/src/applications/settings/panel/PhabricatorSettingsPanelDisplayPreferences.php
index b5b4d00d3..93ef8383b 100644
--- a/src/applications/settings/panel/PhabricatorSettingsPanelDisplayPreferences.php
+++ b/src/applications/settings/panel/PhabricatorSettingsPanelDisplayPreferences.php
@@ -1,170 +1,173 @@
 <?php
 
 final class PhabricatorSettingsPanelDisplayPreferences
   extends PhabricatorSettingsPanel {
 
   public function getPanelKey() {
     return 'display';
   }
 
   public function getPanelName() {
     return pht('Display Preferences');
   }
 
   public function getPanelGroup() {
     return pht('Application Settings');
   }
 
   public function processRequest(AphrontRequest $request) {
     $user = $request->getUser();
     $preferences = $user->loadPreferences();
 
     $pref_monospaced   = PhabricatorUserPreferences::PREFERENCE_MONOSPACED;
     $pref_dark_console = PhabricatorUserPreferences::PREFERENCE_DARK_CONSOLE;
     $pref_editor       = PhabricatorUserPreferences::PREFERENCE_EDITOR;
     $pref_multiedit    = PhabricatorUserPreferences::PREFERENCE_MULTIEDIT;
     $pref_titles       = PhabricatorUserPreferences::PREFERENCE_TITLES;
     $pref_monospaced_textareas =
       PhabricatorUserPreferences::PREFERENCE_MONOSPACED_TEXTAREAS;
 
     if ($request->isFormPost()) {
       $monospaced = $request->getStr($pref_monospaced);
 
       // Prevent the user from doing stupid things.
       $monospaced = preg_replace('/[^a-z0-9 ,"]+/i', '', $monospaced);
 
       $preferences->setPreference($pref_titles, $request->getStr($pref_titles));
       $preferences->setPreference($pref_editor, $request->getStr($pref_editor));
       $preferences->setPreference(
         $pref_multiedit,
         $request->getStr($pref_multiedit));
       $preferences->setPreference($pref_monospaced, $monospaced);
       $preferences->setPreference(
         $pref_monospaced_textareas,
         $request->getStr($pref_monospaced_textareas));
       $preferences->setPreference(
         $pref_dark_console,
         $request->getBool($pref_dark_console));
 
       $preferences->save();
       return id(new AphrontRedirectResponse())
         ->setURI($this->getPanelURI('?saved=true'));
     }
 
     $example_string = <<<EXAMPLE
 // This is what your monospaced font currently looks like.
 function helloWorld() {
   alert("Hello world!");
 }
 EXAMPLE;
 
     $editor_doc_link = phutil_tag(
       'a',
       array(
         'href' => PhabricatorEnv::getDoclink(
           'article/User_Guide_Configuring_an_External_Editor.html'),
       ),
       'User Guide: Configuring an External Editor');
 
     $font_default = PhabricatorEnv::getEnvConfig('style.monospace');
 
     $pref_monospaced_textareas_value = $preferences
       ->getPreference($pref_monospaced_textareas);
     if (!$pref_monospaced_textareas_value) {
       $pref_monospaced_textareas_value = 'disabled';
     }
     $pref_dark_console_value = $preferences->getPreference($pref_dark_console);
     if (!$pref_dark_console_value) {
         $pref_dark_console_value = 0;
     }
 
     $form = id(new AphrontFormView())
       ->setUser($user)
       ->appendChild(
         id(new AphrontFormSelectControl())
           ->setLabel('Page Titles')
           ->setName($pref_titles)
           ->setValue($preferences->getPreference($pref_titles))
           ->setOptions(
             array(
               'glyph' =>
               "In page titles, show Tool names as unicode glyphs: \xE2\x9A\x99",
               'text' =>
               'In page titles, show Tool names as plain text: [Differential]',
             )))
       ->appendChild(
         id(new AphrontFormTextControl())
         ->setLabel('Editor Link')
         ->setName($pref_editor)
         ->setCaption(hsprintf(
           'Link to edit files in external editor. '.
           '%%f is replaced by filename, %%l by line number, %%r by repository '.
           'callsign, %%%% by literal %%. For documentation, see %s.',
           $editor_doc_link))
         ->setValue($preferences->getPreference($pref_editor)))
       ->appendChild(
         id(new AphrontFormSelectControl())
         ->setLabel('Edit Multiple Files')
         ->setName($pref_multiedit)
         ->setOptions(array(
           '' => 'Supported (paths separated by spaces)',
           'disable' => 'Not Supported',
         ))
         ->setValue($preferences->getPreference($pref_multiedit)))
       ->appendChild(
         id(new AphrontFormTextControl())
         ->setLabel('Monospaced Font')
         ->setName($pref_monospaced)
         ->setCaption(hsprintf(
           'Overrides default fonts in tools like Differential.<br />'.
           '(Default: %s)',
           $font_default))
         ->setValue($preferences->getPreference($pref_monospaced)))
       ->appendChild(
         id(new AphrontFormMarkupControl())
         ->setValue(phutil_tag(
           'pre',
           array('class' => 'PhabricatorMonospaced'),
           $example_string)))
       ->appendChild(
         id(new AphrontFormRadioButtonControl())
         ->setLabel('Monospaced Textareas')
         ->setName($pref_monospaced_textareas)
         ->setValue($pref_monospaced_textareas_value)
         ->addButton('enabled', 'Enabled',
           'Show all textareas using the monospaced font defined above.')
-        ->addButton('disabled', 'Disabled', null))
-      ->appendChild(
+        ->addButton('disabled', 'Disabled', null));
+
+    if (PhabricatorEnv::getEnvConfig('darkconsole.enabled')) {
+      $form->appendChild(
         id(new AphrontFormRadioButtonControl())
         ->setLabel('Dark Console')
         ->setName($pref_dark_console)
         ->setValue($pref_dark_console_value ?
             $pref_dark_console_value : 0)
         ->addButton(1, 'Enabled',
           'Enabling and using the built-in debugging console.')
-        ->addButton(0, 'Disabled', null))
-      ->appendChild(
-        id(new AphrontFormSubmitControl())
-          ->setValue('Save Preferences'));
+        ->addButton(0, 'Disabled', null));
+    }
 
+    $form->appendChild(
+      id(new AphrontFormSubmitControl())
+        ->setValue('Save Preferences'));
 
     $panel = new AphrontPanelView();
     $panel->setHeader('Display Preferences');
     $panel->appendChild($form);
     $panel->setNoBackground();
 
     $error_view = null;
     if ($request->getStr('saved') === 'true') {
       $error_view = id(new AphrontErrorView())
         ->setTitle('Preferences Saved')
         ->setSeverity(AphrontErrorView::SEVERITY_NOTICE)
         ->setErrors(array('Your preferences have been saved.'));
     }
 
     return array(
       $error_view,
       $panel,
     );
   }
 }