diff --git a/app/assets/main.css b/app/assets/main.css
index 8897b7da18..1d279645bb 100644
--- a/app/assets/main.css
+++ b/app/assets/main.css
@@ -5,83 +5,84 @@
   box-sizing: border-box;
 }
 
-:root:not([data-theme='light']),
-:root[data-theme='dark'] {
-  /* background colors */
-  --bg: var(--bg-color, oklch(0.171 0 0));
-  --bg-subtle: var(--bg-subtle-color, oklch(0.198 0 0));
-  --bg-muted: var(--bg-muted-color, oklch(0.236 0 0));
-  --bg-elevated: var(--bg-elevated-color, oklch(0.266 0 0));
-
-  /* text colors */
-  --fg: oklch(0.982 0 0);
-  --fg-muted: oklch(0.749 0 0);
-  --fg-subtle: oklch(0.673 0 0);
-
-  /* border, separator colors */
-  --border: oklch(0.269 0 0);
-  --border-subtle: oklch(0.239 0 0);
-  --border-hover: oklch(0.371 0 0);
-
-  /* accent color, set by user from settings */
-  --accent: var(--accent-color, oklch(0.787 0.128 230.318));
-  --accent-muted: var(--accent-color, oklch(0.922 0 0));
-
-  /* accent colors */
-  --swatch-sky: oklch(0.787 0.128 230.318);
-  --swatch-coral: oklch(0.704 0.177 14.75);
-  --swatch-amber: oklch(0.828 0.165 84.429);
-  --swatch-emerald: oklch(0.792 0.153 166.95);
-  --swatch-violet: oklch(0.78 0.148 286.067);
-  --swatch-magenta: oklch(0.78 0.15 330);
-  --swatch-neutral: oklch(1 0 0);
-
-  /* syntax highlighting colors */
-  --syntax-fn: oklch(0.727 0.137 299.149);
-  --syntax-str: oklch(0.829 0.088 252.458);
-  --syntax-kw: oklch(0.721 0.162 15.494);
-  --syntax-comment: oklch(0.551 0.019 250.976);
-
-  /* badge colors for background & text */
-  --badge-orange: oklch(0.67 0.185 55);
-  --badge-yellow: oklch(0.588 0.183 91);
-  --badge-green: oklch(0.566 0.202 165);
-  --badge-cyan: oklch(0.571 0.181 210);
-  --badge-blue: oklch(0.579 0.191 252);
-  --badge-indigo: oklch(0.573 0.262 276.966);
-  --badge-purple: oklch(0.495 0.172 295);
-  --badge-pink: oklch(0.584 0.189 343);
-}
-
-:root[data-theme='dark'][data-bg-theme='slate'] {
-  --bg: oklch(0.151 0.018 264.695);
-  --bg-subtle: oklch(0.179 0.015 262.421);
-  --bg-muted: oklch(0.214 0.018 261.234);
-  --bg-elevated: oklch(0.259 0.021 260.031);
-}
-
-:root[data-theme='dark'][data-bg-theme='zinc'] {
-  --bg: oklch(0.158 0.005 285.823);
-  --bg-subtle: oklch(0.188 0.005 285.894);
-  --bg-muted: oklch(0.219 0.005 285.929);
-  --bg-elevated: oklch(0.256 0.006 286.033);
-}
-
-:root[data-theme='dark'][data-bg-theme='stone'] {
-  --bg: oklch(0.164 0.004 89.25);
-  --bg-subtle: oklch(0.198 0.008 89.321);
-  --bg-muted: oklch(0.228 0.015 89.386);
-  --bg-elevated: oklch(0.252 0.018 84.298);
-}
-
-:root[data-theme='dark'][data-bg-theme='black'] {
-  --bg: oklch(0 0 0);
-  --bg-subtle: oklch(0.148 0 0);
-  --bg-muted: oklch(0.204 0 0);
-  --bg-elevated: oklch(0.264 0 0);
-}
-
-:root[data-theme='light'] {
+/* :root:not([data-theme='light']), */
+/* :root[data-theme='dark'] { */
+/* background colors */
+/* --bg: var(--bg-color, oklch(0.171 0 0)); */
+/* --bg-subtle: var(--bg-subtle-color, oklch(0.198 0 0)); */
+/* --bg-muted: var(--bg-muted-color, oklch(0.236 0 0)); */
+/* --bg-elevated: var(--bg-elevated-color, oklch(0.266 0 0)); */
+
+/* text colors */
+/* --fg: oklch(0.982 0 0); */
+/* --fg-muted: oklch(0.749 0 0); */
+/* --fg-subtle: oklch(0.673 0 0); */
+
+/* border, separator colors */
+/* --border: oklch(0.269 0 0); */
+/* --border-subtle: oklch(0.239 0 0); */
+/* --border-hover: oklch(0.371 0 0); */
+
+/* accent color, set by user from settings */
+/* --accent: var(--accent-color, oklch(0.787 0.128 230.318)); */
+/* --accent-muted: var(--accent-color, oklch(0.922 0 0)); */
+
+/* accent colors */
+/* --swatch-sky: oklch(0.787 0.128 230.318); */
+/* --swatch-coral: oklch(0.704 0.177 14.75); */
+/* --swatch-amber: oklch(0.828 0.165 84.429); */
+/* --swatch-emerald: oklch(0.792 0.153 166.95); */
+/* --swatch-violet: oklch(0.78 0.148 286.067); */
+/* --swatch-magenta: oklch(0.78 0.15 330); */
+/* --swatch-neutral: oklch(1 0 0); */
+
+/* syntax highlighting colors */
+/* --syntax-fn: oklch(0.727 0.137 299.149); */
+/* --syntax-str: oklch(0.829 0.088 252.458); */
+/* --syntax-kw: oklch(0.721 0.162 15.494); */
+/* --syntax-comment: oklch(0.551 0.019 250.976); */
+
+/* badge colors for background & text */
+/* --badge-orange: oklch(0.67 0.185 55); */
+/* --badge-yellow: oklch(0.588 0.183 91); */
+/* --badge-green: oklch(0.566 0.202 165); */
+/* --badge-cyan: oklch(0.571 0.181 210); */
+/* --badge-blue: oklch(0.579 0.191 252); */
+/* --badge-indigo: oklch(0.573 0.262 276.966); */
+/* --badge-purple: oklch(0.495 0.172 295); */
+/* --badge-pink: oklch(0.584 0.189 343); */
+/* } */
+
+/* :root[data-theme='dark'][data-bg-theme='slate'] { */
+/* --bg: oklch(0.151 0.018 264.695); */
+/* --bg-subtle: oklch(0.179 0.015 262.421); */
+/* --bg-muted: oklch(0.214 0.018 261.234); */
+/* --bg-elevated: oklch(0.259 0.021 260.031); */
+/* } */
+
+/* :root[data-theme='dark'][data-bg-theme='zinc'] { */
+/* --bg: oklch(0.158 0.005 285.823); */
+/* --bg-subtle: oklch(0.188 0.005 285.894); */
+/* --bg-muted: oklch(0.219 0.005 285.929); */
+/* --bg-elevated: oklch(0.256 0.006 286.033); */
+/* } */
+
+/* :root[data-theme='dark'][data-bg-theme='stone'] { */
+/* --bg: oklch(0.164 0.004 89.25); */
+/* --bg-subtle: oklch(0.198 0.008 89.321); */
+/* --bg-muted: oklch(0.228 0.015 89.386); */
+/* --bg-elevated: oklch(0.252 0.018 84.298); */
+/* } */
+
+/* :root[data-theme='dark'][data-bg-theme='black'] { */
+/* --bg: oklch(0 0 0); */
+/* --bg-subtle: oklch(0.148 0 0); */
+/* --bg-muted: oklch(0.204 0 0); */
+/* --bg-elevated: oklch(0.264 0 0); */
+/* } */
+
+/* :root[data-theme='light'] { */
+:root {
   --bg: var(--bg-color, oklch(1 0 0));
   --bg-subtle: var(--bg-subtle-color, oklch(0.979 0.001 286.375));
   --bg-muted: var(--bg-muted-color, oklch(0.955 0.001 286.76));
@@ -122,45 +123,50 @@
   --badge-cyan: oklch(0.571 0.181 210);
 }
 
-:root[data-theme='light'][data-bg-theme='slate'] {
+/* :root[data-theme='light'][data-bg-theme='slate'] { */
+:root[data-bg-theme='slate'] {
   --bg: oklch(1 0 0);
   --bg-subtle: oklch(0.982 0.008 269.62);
   --bg-muted: oklch(0.96 0.008 261.234);
   --bg-elevated: oklch(0.943 0.012 255.52);
 }
 
-:root[data-theme='light'][data-bg-theme='zinc'] {
+/* :root[data-theme='light'][data-bg-theme='zinc'] { */
+:root[data-bg-theme='zinc'] {
   --bg: oklch(1 0 0);
   --bg-subtle: oklch(0.979 0.004 286.53);
   --bg-muted: oklch(0.958 0.004 286.39);
   --bg-elevated: oklch(0.939 0.004 286.32);
 }
 
-:root[data-theme='light'][data-bg-theme='stone'] {
+/* :root[data-theme='light'][data-bg-theme='stone'] { */
+:root[data-bg-theme='stone'] {
   --bg: oklch(1 0 0);
   --bg-subtle: oklch(0.979 0.004 88.762);
   --bg-muted: oklch(0.958 0.005 88.743);
   --bg-elevated: oklch(0.943 0.005 88.731);
 }
 
-:root[data-theme='light'][data-bg-theme='black'] {
+/* :root[data-theme='light'][data-bg-theme='black'] { */
+:root[data-bg-theme='black'] {
   --bg-subtle: var(--bg-subtle-color, oklch(0.979 0 0));
 }
 
 @media (prefers-contrast: more) {
-  :root[data-theme='dark'] {
-    /* text colors */
-    --fg: oklch(1 0 0);
-    --fg-muted: oklch(0.769 0 0);
-    --fg-subtle: oklch(0.693 0 0);
+  /* :root[data-theme='dark'] { */
+  /* text colors */
+  /* --fg: oklch(1 0 0); */
+  /* --fg-muted: oklch(0.769 0 0); */
+  /* --fg-subtle: oklch(0.693 0 0); */
 
-    /* border, separator colors */
-    --border: oklch(0.769 0 0);
-    --border-subtle: oklch(0.739 0 0);
-    --border-hover: oklch(0.771 0 0);
-  }
+  /* border, separator colors */
+  /* --border: oklch(0.769 0 0); */
+  /* --border-subtle: oklch(0.739 0 0); */
+  /* --border-hover: oklch(0.771 0 0); */
+  /* } */
 
-  :root[data-theme='light'] {
+  /* :root[data-theme='light'] { */
+  :root {
     /* text colors */
     --fg: oklch(0 0 0);
     --fg-muted: oklch(0.329 0 0);
@@ -275,7 +281,8 @@ dd {
 }
 
 /* Shiki theme colors */
-html.light .shiki {
+/* html.light .shiki { */
+html .shiki {
   color: var(--shiki-light) !important;
   background-color: var(--shiki-light-bg) !important;
 
diff --git a/app/pages/index.vue b/app/pages/index.vue
index 48c5575b00..2f094d3a1a 100644
--- a/app/pages/index.vue
+++ b/app/pages/index.vue
@@ -92,6 +92,16 @@ defineOgImageComponent('Default', {
         </search>
 
         <BuildEnvironment class="mt-4" />
+        <p class="max-w-3xl mx-auto text-center">
+          <b>Update:</b>
+          We’ve completed our user experience research and carefully reviewed the results. To
+          deliver the best possible experience, we’ve decided to <b>remove the dark theme</b>. We’re
+          committed to making decisions based on what works best for our users and are glad we took
+          the time to validate this through
+          <a href="/theme-research" target="_blank" rel="noopener noreferrer" class="underline"
+            >user research</a
+          >. Thank you for participating 🤍
+        </p>
       </header>
 
       <nav
diff --git a/app/pages/settings.vue b/app/pages/settings.vue
index e90faf551f..6181fd58a5 100644
--- a/app/pages/settings.vue
+++ b/app/pages/settings.vue
@@ -2,7 +2,7 @@
 const router = useRouter()
 const { settings } = useSettings()
 const { locale: currentLocale, locales, setLocale: setNuxti18nLocale } = useI18n()
-const colorMode = useColorMode()
+// const colorMode = useColorMode()
 const { currentLocaleStatus, isSourceLocale } = useI18nStatus()
 const keyboardShortcutsEnabled = useKeyboardShortcuts()
 
@@ -66,7 +66,7 @@ const setLocale: typeof setNuxti18nLocale = newLocale => {
           </h2>
           <div class="bg-bg-subtle border border-border rounded-lg p-4 sm:p-6 space-y-6">
             <!-- Theme selector -->
-            <div class="space-y-2">
+            <!-- <div class="space-y-2">
               <label for="theme-select" class="block text-sm text-fg font-medium">
                 {{ $t('settings.theme') }}
               </label>
@@ -82,7 +82,7 @@ const setLocale: typeof setNuxti18nLocale = newLocale => {
                   { label: $t('settings.theme_dark'), value: 'dark' },
                 ]"
               />
-            </div>
+            </div> -->
 
             <!-- Accent colors -->
             <div class="space-y-3">
diff --git a/vercel.json b/vercel.json
index 351f0d4bf9..dad531ee02 100644
--- a/vercel.json
+++ b/vercel.json
@@ -2,6 +2,10 @@
   "$schema": "https://openapi.vercel.sh/vercel.json",
   "trailingSlash": false,
   "redirects": [
+    {
+      "source": "/theme-research",
+      "destination": "https://www.youtube.com/watch?v=dQw4w9WgXcQ"
+    },
     {
       "source": "/(.*)",
       "has": [