### 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
if (!ProjectSettings::get_singleton()->has_setting("file_customization/folder_colors")) {
		ProjectSettings::get_singleton()->set_setting("file_customization/folder_colors", assigned_folder_colors);
	} else if (assigned_folder_colors.is_empty()) {
		ProjectSettings::get_singleton()->set_setting("file_customization/folder_colors", Variant());
	}
	ProjectSettings::get_singleton()->save();
}
void FileSystemDock::_folder_color_index_pressed(int p_index, PopupMenu *p_menu) {