BC_ThemeSet *existing_image_set = title[0] ? get_image_set_object(title) : 0;
if( existing_image_set ) {
image_sets.remove_object(existing_image_set);
BC_ThemeSet *existing_image_set = title[0] ? get_image_set_object(title) : 0;
if( existing_image_set ) {
image_sets.remove_object(existing_image_set);