added a png to serve as background behind thigs that are transparent, ie the slider in theme setter for page bg, slight tweak to separator component

components/Layout.tsx

···
 export const Separator = (props: { classname?: string }) => {
-  return <div className={`h-6 border-r border-border ${props.classname}`} />;
+  return (
+    <div className={`min-h-full border-r border-border ${props.classname}`} />
+  );
 };