investigate if/how WPT can test user preference media features like `prefers-contrast: more` and `prefers-reduced-motion`

[cookiecrook]

investigate if/how WPT can test user preference media features like prefers-contrast: more and prefers-reduced-motion

[cookiecrook]

context... there are a lot of Interop 2025 Focus Area proposals around color and/or animation features that are unlikely to be fully tested with the contrast and motion related CSS prefs.

[cookiecrook]

Simon suggested filing WPT issue for insight/approach advice.

[cookiecrook]

@keithamus to investigate more

[keithamus]

w3c/csswg-drafts#6517 might be useful here - nascent work but it should allow user control of the prefers-* media queries.