@lah7
I made some progress on your attempt at fixing unfocused desktop labels bug.
This was your initial unsuccessful attempt:
.caja-desktop.view :selected:backdrop {
background-color: @theme_unfocused_bg_color;
color: @theme_unfocused_fg_color;
}
The problem with that is that in gtk-main.css @theme_unfocused_bg_color is set to @bg_color which in turn happens to be #f2f1f0, i.e. that white-ish background we're seeing.
So... experiment 1 - this gives a red background color for unfocused desktop items:
.caja-desktop.view :selected:backdrop {
background-color: #ff0000;
color: @theme_unfocused_fg_color;
}
18.04-ish fix (which makes unfocused background same as focused one as in 18.04):
.caja-desktop.view :selected:backdrop {
background-color: @theme_selected_bg_color;
color: @theme_unfocused_fg_color;
}
I inserted those before the MATE-Panel section in mate-applications.css, in case it matters.
I hope this helps.
Oh and btw. if you pick a color like @dark_bg_color instead it looks strange if you have the desktop item in rename mode and then lose focus.