.devtools-toolbarbutton[checked=true]:hover,
#toolbox-buttons .devtools-toolbarbutton[text-as-image][checked] {
/* background: rgba(29, 79, 115, .8); / Select highlight blue /
.devtools-toolbarbutton[checked=true]:hover,
#toolbox-buttons .devtools-toolbarbutton[text-as-image][checked] {
/* background: rgba(29, 79, 115, .8); / Select highlight blue /