Fixed slider range background.

assets/css/theme.css

@@ -1,6 +1,7 @@
 :root {
     --primary: #f65596;
     --primary-light-10: #f075a6;
+    --primary-light-30: #f7c9dc;
 
     --grey-dark-50: #111;
     --grey-dark-40: #222;