Re: Please review before today's meeting - new forced colors content

Hi Matt,

I have been doing dome testing of Firefox on Linux and macOS, and the contrast themes are really only work in Windows 10 and 11.  There are options in the Firefox Accessibility settings for managing the use of custom themes and a  “custom color” setting , but in Firefox this is limited to setting the colors for text and links.  When you enable the custom colors setting in Firefox and are in Windows 11 it ignores the Windows 11 custom theme.  The bigger issue with Firefox is it seems its default setting for custom colors is “off” which means it ignores the “forced-colors” media query by default.

Jon


> On Aug 19, 2026, at 1:57 AM, Matt King <a11ythinker@gmail.com> wrote:
> 
> Hi all,
> 
> If you can take 10 to 15 minutes ahead of today's meeting to read the latest version of the new content on contrast themes (forced colors), it would really help make the discussion more effective. Here is a direct link to the preview of that content from PR 2991:
> https://deploy-preview-480--aria-practices.netlify.app/aria/apg/practices/color-settings/#contrastthemes(forcedcolors <https://urldefense.com/v3/__https://deploy-preview-480--aria-practices.netlify.app/aria/apg/practices/color-settings/*contrastthemes(forcedcolors__;Iw!!DZ3fjg!-4lJUNTxBNHomcbDH--tfCPuqZMWL6pYb4d-AYQX_7HWYfMtiAl9lVAohcaBJ7bfc_5H1kpWroiHRF-rZ4TniqU$>
> 
> Cheers,
> Matt