Gin is a modern admin theme that dramatically improves the Drupal admin experience. It offers a sleeker interface, better use of space, dark mode support, and a more refined editor workflow.
Originally built as a contrib theme, Gin has become hugely popular with editors and developers who find the default Claro theme dated. It is now being brought into core as an experimental extension in Drupal 12 with plans to eventually replace Claro as the default.
Pair Gin with the Gin Toolbar and Gin Login modules for a complete reimagined admin experience. It works alongside the Layout Builder and Media Library beautifully. If you are building a Drupal site where editors spend significant time in the admin, installing Gin is one of the easiest wins available.