Improve css

theme/static/css/main.css

@@ -20,6 +20,15 @@ body[theme=dark] {
   --backgroundColor: #2a2a2a;
 }
 
+@media (prefers-color-scheme: dark) {
+    body:not([theme]), body[theme=dark] {
+      --textColor: #eaeaea;
+      --linkColor: #70B7FF;
+      --lightColor: #a8a8a8;
+      --backgroundColor: #2a2a2a;
+    }
+}
+
 html, body {
   margin: 0;
 }