Theme extension
Strapi's admin panel can be displayed either in light or dark mode (see profile setup), and both can be extended through custom theme settings.
To extend the theme, use either:
- the config.theme.lightkey for the Light mode
- the config.theme.darkkey for the Dark mode
 Strapi Design System
The default Strapi theme defines various theme-related keys (shadows, colors…) that can be updated through the config.theme.light and config.theme.dark keys in ./admin/src/app.js. The Strapi Design System is fully customizable and has a dedicated StoryBook documentation.