config/locales/en.yml

@@ -1143,7 +1143,7 @@ en:
     contrast: Mastodon (High contrast)
     default: Mastodon (Dark)
     mastodon-light: Mastodon (Light)
-    mastodon-autumn: Mastodon (Autumn)
+    mastodon-spooky: Mastodon (Spooky)
     mastodon-winter: Mastodon (Winter)
     synthwave: Radtown (Synthwave)
     chillstep: Radtown (Chillstep) 

config/themes.yml

@@ -1,7 +1,7 @@
 default: styles/application.scss
 contrast: styles/contrast.scss
 mastodon-light: styles/mastodon-light.scss
-mastodon-autumn: styles/mastodon-autumn.scss
+mastodon-spooky: styles/mastodon-spooky.scss
 mastodon-winter: styles/mastodon-winter.scss
 synthwave: styles/synthwave.scss
 chillstep: styles/chillstep.scss