Hi Phiro, as I work in 'grey' defacto theme - i did not test that, i can likely try fix that (see below for interim to test - replace the entire block
you gave with this below,

code:

.cp_btn_selected {
	font-weight: bold;
	background-color: #2f6fad;
	color: #ffffff;
}

cheers Stefano

EDIT: my first post has now had command palette.txt updated with the code above / darkmode friendlier
https://moi3d.com/forum/index.php?webtag=MOI&msg=12014.1