diff --git a/core/themes/seven/css/theme/appearance-page.css b/core/themes/seven/css/theme/appearance-page.css
deleted file mode 100644
index 64a89d2..0000000
--- a/core/themes/seven/css/theme/appearance-page.css
+++ /dev/null
@@ -1,7 +0,0 @@
-/**
- * Appearance page.
- */
-.system-themes-list__header {
-  font-weight: normal;
-  text-transform: uppercase;
-}
diff --git a/core/themes/seven/seven.libraries.yml b/core/themes/seven/seven.libraries.yml
index a446265..445c302 100644
--- a/core/themes/seven/seven.libraries.yml
+++ b/core/themes/seven/seven.libraries.yml
@@ -34,8 +34,6 @@ global-styling:
       css/components/views-ui.css: {}
     layout:
       css/layout/layout.css: {}
-    theme:
-      css/theme/appearance-page.css: {}
 
 node-form:
   version: VERSION