1737496 - Users should have full control of content & toolkit colours

Status: RESOLVED DUPLICATE of bug 1736218

(Firefox :: Settings UI, enhancement)

Description

[Paul Bone [:pbone]]

AIUI there are multiple places where colours may be choosen.

• The desktop may have a high contrast or inverse colour scheme, or just a "dark" theme.
• The Firefox may have a theme including "dark" themes.
• Web content may use the prefers colour scheme attribute.

Some users may wish to specify certain options for 1 and 2 but not want web content tied to those. A recent slack discussion spoke about choosing dark themes for the first two and a light theme for web content.

Users should be able choose their preferrs colour scheme setting either tied to the firefox theme or set specifically to some other option. It should not be hidden in about:config. We should point a link nearby to remind users that they are able to choose a theme for the browser also.

Comment 1

[Martin Thomson [:mt:]]

Something concrete that seems reasonable:

layout.css.prefers-color-scheme.content-override has four values that determines the 'dark/light' preference for content: 0 = dark, 1 = light, 2 = follow the OS, 3 = follow new tab

Putting this on about:preferences under "colors" would give people greater control over the dark/light preference that sites receive (specifically the result of the prefers-color-scheme media query).

Comment 2

[Brian Birtles (:birtles)]

Dupe of bug 1736218?