Cast

Colour modes for the Craft CMS control panel.

Bundled themes, an Auto mode that follows the operating system, and a per-user picker.

A theme is a stylesheet redeclaring the custom properties Craft already ships in ThemeAsset. No forked templates, no rewritten layouts, so a Craft upgrade comes through untouched. The active theme is stamped onto <html> by an inline head script, so there's no flash, and picking one repaints immediately without a save.

🚧 Cast is in beta. The theme APIs are settled (Themes::EVENT_REGISTER_THEMES and the cast-themes/ file format won't change before 1.0.0) but the plugin's own settings may still move.

Bundled themes

Theme	Scheme	Notes
Dark	Dark	Neutral dark CP. The reference implementation.
Dim	Dark	Softer and lower contrast, for long sessions.
Stone	Light	A warm neutral, based on Tailwind's stone ramp.
Stone Dark	Dark	The same warm neutral, but.. dark.
High Contrast	Light	Near-black text, solid borders, widened focus ring.
High Contrast Dark	Dark	The same treatment on a near-black canvas.

Adding your own theme

Drop a .css file in cast-themes/, alongside config/ and templates/. The filename is the handle, a header comment supplies the rest.