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conformance · v149

v149 · system-accent-color-scoped-to-web-apps — conformance probe

6 assertions drawn from the spec. Each is a single contract the spec text makes. Pass/fail reflects what this browser executed; blocked means the contract was not run because it needs user mediation, hardware, or another unavailable precondition. Open the page in Chrome stable / canary / Firefox / Safari to compare.

browser: spec: https://drafts.csswg.org/css-ui-4/#widget-accent chromestatus: #5106043975761920 generated 2026-06-01T08:15:14Z by conformance-author-v1-subagent
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pass
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fail
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blocked
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id contract kind verdict detail
accent-color-property-supported The accent-color property is supported and accepts a <color>. spec ↗ css-supports
accent-color-auto-supported accent-color: auto is accepted (resolves to system accent only inside installed PWA scope). spec ↗ css-supports
accent-color-keyword-still-parses The AccentColor system color keyword still parses as a colour value. spec ↗ css-supports
accent-color-text-keyword-still-parses AccentColorText system color keyword still parses. spec ↗ css-supports
accent-color-round-trips Setting accent-color via CSSOM round-trips via getComputedStyle. spec ↗ script
system-accent-not-leaked-in-tab In a regular (non-PWA) browsing context, AccentColor must not differ across visits in a way that fingerprints — exposed as a defined fallback. spec ↗ script