Merge pull request #84115 from Chubercik/item_list_separator_fix

[3.x] Remove the separator from `ItemList`'s thumbnails mode

scene/gui/item_list.cpp

@@ -1155,6 +1155,8 @@ void ItemList::_notification(int p_what) {
 			first_visible_separator = lo;
 		}
 
+		// If not in thumbnails mode, draw visible separators.
+		if (icon_mode != ICON_MODE_TOP) {
 			for (int i = first_visible_separator; i < separators.size(); i++) {
 				if (separators[i] > clip.position.y + clip.size.y) {
 					break; // done
@@ -1165,6 +1167,7 @@ void ItemList::_notification(int p_what) {
 			}
 		}
 	}
+}
 
 void ItemList::_scroll_changed(double) {
 	update();