change background colour of the proton badge when it's selected; make…

…s it more readable (#24)

styles/proton/rose-pine.user.css

@@ -273,5 +273,10 @@
 		.button-solid-norm {
 			color: @base;
 		}
+
+        /* the "Official" badge; setting the background to overlay makes it readable when selected */
+        .label-proton-badge--selected {
+            background-color: @overlay;
+        }
 	}
 }