read in raw format for proper formatting
top bar css gnome
add this to the panel section in your gnome-shell.css with a text editor of your choice:
border-radius: 9px; height: 43px; margin-top: 19px; margin-right: 250px; margin-left: 250px; margin: 5px 5px;
(you can change the values but i find this looks best)
In effect;
/* Top Bar */ #panel { background-color: rgba(42, 40, 39, 0.9); font-weight: bold; height: 43px; color: rgba(221, 199, 161, 1); font-feature-settings: 'tnum'; transition-duration: 250ms; font-size: 10.5pt; margin: 5px 5px; margin-top: 19px; margin-right: 250px; margin-left: 250px; border: 2px solid rgba(221, 199, 161, 0.5); border-radius: 19px; }
should work with any theme, make sure to disable blur my shell on the panel if you are using it, as it breaks some stuff usually, (haven't found a work around to make the panel blurred sadly.)
Works on Gnome 42