I am testing out stacked widgets (to create tabs) in a grid column. I would like to change the tab appearance (default, selected, hover) but don't see that I can make any or even one of those changes without also changing the map background color. Is there a way to do this or is there a better way to stack widgets to make tabs (and modify settings)? I'm in Developer 1.16.

The grid rests within the second sidebar.

I can change the font color via the primary theme color.

If I change the third color that updates the default tab background color but it also changes the map background color, as well as the color of the map widgets (zoom, home, etc).
Maybe a CSS file somewhere can be edited? Should I try a completely different path?