The Android backend for prefers-color-scheme didn't get on Firefox 67, it's just landed on mozilla-central, will be shipped in Firefox 68.
Thanks, hiro On Sat, Feb 16, 2019 at 5:38 AM Mats Palmgren <m...@mozilla.com> wrote: > Summary: > The 'prefers-color-scheme' media feature is way for pages to detect > if the user prefers a light or dark color theme. The values are > 'light', 'dark', and 'no-preference'. If the "resist fingerprinting" > feature is active we always match 'light'. If the media type is > 'print' we always match 'light'. Otherwise, we try to determine > a value from the user's current "desktop theme". This should work > well on recent versions of OSX and Windows. On Linux, we don't > know how to determine a value from the system so we match > 'no-preference' there - help wanted: > https://bugzilla.mozilla.org/show_bug.cgi?id=1525775 > > Bug: > https://bugzilla.mozilla.org/show_bug.cgi?id=1494034 > > Link to standard: > https://drafts.csswg.org/mediaqueries-5/#prefers-color-scheme > > Platform coverage: All platforms > > Estimated or target release: Firefox 67 > > Preference behind which this will be implemented: > The feature is always enabled, but there is an existing hidden > preference to set a value (integer), ui.systemUsesDarkTheme: > 0 = light > 1 = dark > 2 = no-preference > > Is this feature enabled by default in sandboxed iframes? > Yes, but if widget look-and-feel features are disabled in > sandboxed iframes then we'll match 'no-preference'. > > DevTools bug: none > > Do other browser engines implement this? > Safari has implemented this feature and it's available in their > Nightly build, but it's not yet shipped AFAICT. > https://paulmillr.com/posts/using-dark-mode-in-css/ is a post about > implementation of this feature in Safari; > > https://webkit.org/blog/8475/release-notes-for-safari-technology-preview-68/ > documents its addition. > > It appears Chrome is actively working on it: > https://bugs.chromium.org/p/chromium/issues/detail?id=889087 > > web-platform-tests: > https://w3c-test.org/css/mediaqueries/prefers-color-scheme.html > > Is this feature restricted to secure contexts? No > > Credit also goes to Jonathan Kingston who wrote the initial > implementation of this feature. > > > /Mats > _______________________________________________ > dev-platform mailing list > dev-platform@lists.mozilla.org > https://lists.mozilla.org/listinfo/dev-platform > _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
