Installed themes
Bartik 9.4.15
A flexible, recolorable theme with many regions and a responsive, mobile-first layout.
Seven 9.4.15 (administration theme)
The default administration theme for Drupal 8 was designed with clean lines, simple blocks, and sans-serif font to emphasize the tools and tasks at hand.
Uninstalled themes
Claro 9.4.15
A clean, accessible, and powerful Drupal administration theme.
Gin 8.x-3.0-rc12
Admin theme with a strong focus on improving the Editorial Experience
Olivero 9.4.15
A clean, accessible, and flexible Drupal front-end theme.
Stark 9.4.15
An intentionally plain theme with no styling to demonstrate default Drupal’s HTML and CSS. Learn how to build a custom theme from Stark in the Theming Guide.