Forced Colours
System colours take control of actions, controls, links and selection. Warning, Danger and Info also retain non-colour border patterns.
Phase 7 stress coverage for Forced Colours, increased contrast, reduced motion, native colour-scheme and keyboard focus.
This page uses the exact current /dev runtime. Chromium emulation is automated; final Windows High Contrast and screen-reader sign-off remains a real-device manual check.
The canonical 1.3 accessibility display-mode contract, including nested theme surfaces and portaled UI.
System colours take control of actions, controls, links and selection. Warning, Danger and Info also retain non-colour border patterns.
Muted text, placeholders, control boundaries and keyboard focus become stronger inside both root and nested surfaces.
Document smooth scrolling and indefinite loading/typing motion are suppressed when reduced motion is requested.
Keyboard focus must remain visible while native controls retain the correct local colour scheme.
Dashed boundary in Forced Colours.
Double boundary in Forced Colours.
Dotted boundary in Forced Colours.