La dernière version :
@import '/usr/share/darktable/darktable.css';
@define-color bg_color #484848;
@define-color plugin_bg_color #535353;
@define-color fg_color #eee;
@define-color base_color #444;
@define-color text_color #eee;
@define-color selected_bg_color #505050;
@define-color selected_fg_color #eee;
@define-color tooltip_bg_color #BEBEBE;
@define-color tooltip_fg_color #111;
@define-color really_dark_bg_color #595959;
@define-color darkroom_bg_color #777777;
@define-color darkroom_preview_bg_color shade(@darkroom_bg_color, .8);
@define-color lighttable_bg_color @darkroom_bg_color;
@define-color lighttable_preview_bg_color shade(@lighttable_bg_color, .8);
progressbar *
{
background-color: @selected_bg_color;
}