diff --git a/theme-forgejo-auto.css b/theme-forgejo-auto.css
new file mode 100644
index 0000000..ebf5994
--- /dev/null
+++ b/theme-forgejo-auto.css
@@ -0,0 +1,2 @@
+@import "theme-forgejo-light.css";
+@import "theme-forgejo-dark.css" (prefers-color-scheme: dark);