Radix
Radix is a Drupal starter theme that was created by Ramsalt, based out of 9008 Tromsø, Norway. The Radix theme has been available since Drupal 6. Currently Radix 6.X supports Drupal 8.7.7, Drupal 9.0, and Drupal 10.
This Drupal theme comes packaged with useful development tools like BiomeJS, Font Awesome, and Bootstrap 5. Also, note that Radix 6.x works with Starterkit theme and Single directory components in the core, preventing the need for continued use of the components module.
Radix is a powerful, component-driven Drupal theme designed for advanced developers who want to integrate modern JavaScript theming into Drupal. Radix requires users to create a subtheme rather than using it directly. The theme is well-supported through Drupal’s issue queue, Slack, and professional services. Video tutorials for Radix 6.x are in development, with existing tutorials available for version 5.x.