### Godot version

v4.2.beta.custom_build [a574c0296]

### System information

linux

### Issue description

Folder colors don't show up in file dialogs: when saving a scene, etc.

### Steps to reproduce

1. color a folder
2. create and open the save scene dialog and navigate to the colored folder
3. notice it's not shown its color in the file dialog

### Minimal reproduction project

any
Vector<String> uncollapsed_paths;
	TreeItem *root = tree->get_root();
	if (root) {
		TreeItem *favorites_item = root->get_first_child();
		if (!favorites_item->is_collapsed()) {
			uncollapsed_paths.push_back(favorites_item->get_metadata(0));
		}
		
		TreeItem *res_subtree = root->get_first_child()->get_next();
		if (res_subtree) {
			List<TreeItem *> queue;
			queue.push_back(res_subtree);
			while (!queue.is_empty()) {
				TreeItem *ti = queue.back()->get();
				queue.pop_back();
				if (!ti->is_collapsed() && ti->get_child_count() > 0) {
					Variant path = ti->get_metadata(0);
					if (path) {
						uncollapsed_paths.push_back(path);
					}
				}
				for (int i = 0; i < ti->get_child_count(); i++) {
					queue.push_back(ti->get_child(i));
				}
			}
		}
	}
	return uncollapsed_paths;
}
void FileSystemDock::_update_tree(const Vector<String> &p_uncollapsed_paths, bool p_uncollapse_root, bool p_select_in_favorites, bool p_unfold_path) {