diff --git a/theme/book.js b/theme/book.js
index aa12e7e..1174abf 100644
--- a/theme/book.js
+++ b/theme/book.js
@@ -327,16 +327,11 @@ function playground_text(playground, hidden = true) {
     function set_theme(theme, store = true) {
         let ace_theme;
 
-        if (theme == 'coal' || theme == 'navy') {
+        if (theme == 'clamav') {
             stylesheets.ayuHighlight.disabled = true;
             stylesheets.tomorrowNight.disabled = false;
             stylesheets.highlight.disabled = true;
 
-            ace_theme = "ace/theme/tomorrow_night";
-        } else if (theme == 'ayu') {
-            stylesheets.ayuHighlight.disabled = false;
-            stylesheets.tomorrowNight.disabled = true;
-            stylesheets.highlight.disabled = true;
             ace_theme = "ace/theme/tomorrow_night";
         } else {
             stylesheets.ayuHighlight.disabled = true;
diff --git a/theme/index.hbs b/theme/index.hbs
index 69d92b5..149a122 100644
--- a/theme/index.hbs
+++ b/theme/index.hbs
@@ -159,11 +159,8 @@
                             <i class="fa fa-paint-brush"></i>
                         </button>
                         <ul id="theme-list" class="theme-popup" aria-label="Themes" role="menu">
-                            <li role="none"><button role="menuitem" class="theme" id="light">Light</button></li>
-                            <li role="none"><button role="menuitem" class="theme" id="rust">Rust</button></li>
-                            <li role="none"><button role="menuitem" class="theme" id="coal">Coal</button></li>
-                            <li role="none"><button role="menuitem" class="theme" id="navy">Navy</button></li>
-                            <li role="none"><button role="menuitem" class="theme" id="ayu">Ayu</button></li>
+                            <li role="none"><button role="menuitem" class="theme" id="clamav">Dark</button></li>
+                            <li role="none"><button role="menuitem" class="theme" id="clamav_light">Light</button></li>
                         </ul>
                         {{#if search_enabled}}
                         <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)"