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new audit: check that page supports dark mode

See original GitHub issue

Feature request summary

Test whether a site supports “dark mode”.

What is the motivation or use case for changing this?

The upcoming versions of Safari and Chrome support a “dark mode”, via prefers-color-scheme CSS media feature. System-level dark mode is coming to Android in Q, and iOS is also expected to get dark mode in the next major release. PWAs will not feel integrated into the system unless they support dark mode.

Issue Analytics

State:
Created 4 years ago
Reactions:2
Comments:8 (5 by maintainers)

Top GitHub Comments

2reactions

paulirishcommented, Mar 27, 2019

Thanks for bringing it up, but I think it’s much too early for Lighthouse to evaluate this.

chrome’s support of prefers-color-scheme hasn’t shipped yet.
chrome hasn’t figured out the intended policy with enable-android-web-contents-dark-mode and if all pages will be affected.
<meta name="supported-color-schemes"> isn’t shipped yet and seems very central to the developer story here.

Let’s wait for Chrome to have these components in stable and very clear guidance published before we drop people’s Lighthouse scores due to this.

2reactions

ithinkihaveacatcommented, Mar 27, 2019

/cc @tomayac