QuickTwig is a tool for theme developers to quickly override Twig template files. Instead of searching through Twig debug markup and manually copying and renaming files to your theme folder, you can easily access QuickTwig on the toolbar, which will open an off-canvas dialog on the page. Select a theme hook, source template and new template filename (based on the file name suggestions listed in the HTML comments), and QuickTwig will copy the Twig template to your current theme.