diff --git a/app/javascript/skins/glitch/mastodon-system/common.scss b/app/javascript/skins/glitch/mastodon-system/common.scss
deleted file mode 100644
index 3c9698cdb5b..00000000000
--- a/app/javascript/skins/glitch/mastodon-system/common.scss
+++ /dev/null
@@ -1,4 +0,0 @@
-@import 'flavours/glitch/styles/application';
-@media (prefers-color-scheme: light) {
-  @import 'flavours/glitch/styles/mastodon-light';
-}
diff --git a/app/javascript/skins/glitch/mastodon-system/names.yml b/app/javascript/skins/glitch/mastodon-system/names.yml
deleted file mode 100644
index 089cd280565..00000000000
--- a/app/javascript/skins/glitch/mastodon-system/names.yml
+++ /dev/null
@@ -1,4 +0,0 @@
-en:
-  skins:
-    glitch:
-      mastodon-system: Mastodon (system-preferred)
diff --git a/app/javascript/skins/vanilla/mastodon-light/names.yml b/app/javascript/skins/vanilla/mastodon-light/names.yml
index 788526f82de..5e41d1051d3 100644
--- a/app/javascript/skins/vanilla/mastodon-light/names.yml
+++ b/app/javascript/skins/vanilla/mastodon-light/names.yml
@@ -4,5 +4,5 @@ en:
       mastodon-light: Mastodon (light)
 es:
   skins:
-    vanilla:
+    glitch:
       mastodon-light: Mastodon (claro)
diff --git a/app/javascript/skins/vanilla/mastodon-system/common.scss b/app/javascript/skins/vanilla/mastodon-system/common.scss
deleted file mode 100644
index 4b9e9d3fc63..00000000000
--- a/app/javascript/skins/vanilla/mastodon-system/common.scss
+++ /dev/null
@@ -1,4 +0,0 @@
-@import 'styles/application';
-@media (prefers-color-scheme: light) {
-  @import 'styles/mastodon-light';
-}
diff --git a/app/javascript/skins/vanilla/mastodon-system/names.yml b/app/javascript/skins/vanilla/mastodon-system/names.yml
deleted file mode 100644
index b26039b478b..00000000000
--- a/app/javascript/skins/vanilla/mastodon-system/names.yml
+++ /dev/null
@@ -1,4 +0,0 @@
-en:
-  skins:
-    vanilla:
-      mastodon-system: Mastodon (system-preferred)