1698459 - Contrast of active tab is too low with Proton Light theme (on macOS)

Status: RESOLVED DUPLICATE of bug 1697559

(Firefox :: Theme, defect)

Description

[torbjørn]

Attachment: Bildschirmfoto 2021-03-15 um 11.49.41.png

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:88.0) Gecko/20100101 Firefox/88.0

Steps to reproduce:

Enable Proton in current Nightly and use the default theme on macOS, which currently is the same as Proton Light.

Actual results:

The selected tab is nearly indistuingishable because the contrast between the light window background and the tab is too low. See attached screenshot, in which I simulated low contrast through the developer tools.

Expected results:

The active tab should be easily visible, even at a glance.

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'Core::Widget: Cocoa' component, and is moving the bug to that component. Please revert this change in case you think the bot is wrong.

Comment 2

[torbjørn]

Attachment: WCAG contrast rating for Proton Light

I've checked the contrast ratio on contrastchecker.com to see which WCAG rating it would get and it failed.