### 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 (p_mouse_button_index != MouseButton::RIGHT) {
		return;
	}
	
	if (searched_string.length() > 0) {
		return;
	}
	current_path = current_path_line_edit->get_text();
	file_list_popup->clear();
	file_list_popup->reset_size();
	file_list_popup->add_icon_item(get_editor_theme_icon(SNAME("Folder")), TTR("New Folder..."), FILE_NEW_FOLDER);
	file_list_popup->add_icon_item(get_editor_theme_icon(SNAME("PackedScene")), TTR("New Scene..."), FILE_NEW_SCENE);
	file_list_popup->add_icon_item(get_editor_theme_icon(SNAME("Script")), TTR("New Script..."), FILE_NEW_SCRIPT);
	file_list_popup->add_icon_item(get_editor_theme_icon(SNAME("Object")), TTR("New Resource..."), FILE_NEW_RESOURCE);
	file_list_popup->add_icon_item(get_editor_theme_icon(SNAME("TextFile")), TTR("New TextFile..."), FILE_NEW_TEXTFILE);
	file_list_popup->add_separator();
	file_list_popup->add_icon_shortcut(get_editor_theme_icon(SNAME("Filesystem")), ED_GET_SHORTCUT("filesystem_dock/show_in_explorer"), FILE_SHOW_IN_EXPLORER);
	file_list_popup->set_position(files->get_screen_position() + p_pos);
	file_list_popup->reset_size();
	file_list_popup->popup();
}
void FileSystemDock::select_file(const String &p_file) {