I tried to set the background colour for my urlbar with `#urlbar-input-container { border: none !important; border-radius: 5px !important; background: light-dark(#ffffffff, #1b1e20ff) !important; }` this works fine for the most part, except on focus it creates some corner effects, which I think might be from the border that gets overlapped somehow.  And this is how it looks on focus without my code

 This colour does not follow my accent colour in KDE plasma. How do I customise it?