diff --git a/config.json b/config.json
index 73a9f0e1..0a99b090 100644
--- a/config.json
+++ b/config.json
@@ -2,7 +2,7 @@
     "homepage":"gemini://yggverse.cities.yesterweb.org",
     "interface":
     {
-        "theme":"Default",
+        "theme":"default",
         "window":
         {
             "header":
diff --git a/src/Theme/Default.css b/src/Theme/default.css
similarity index 100%
rename from src/Theme/Default.css
rename to src/Theme/default.css