If you switch on the edit mode on admin/config/user-interface/navigation-block the button in light mode has a too low color contrast:
#eff6fc against the background in white (#fff) that leads to a color contrast of 1.1:1 the minimum required contrast is at 3:1
in dark mode the design is broken ( 🐛 The design is broken on the navigation layout page in dark mode Active ) therefore i am not sure which color would have be chosen as the button background color.
the button is also missing a style change on hover or on click. only the button label gets a style change on hover or click
admin/config/user-interface/navigation-blockincrease the color contrast for the button / action link and apply style changes not only to the button label but the entire button on hover or click
Active
5.0
User interface
It affects the ability of people with disabilities or special needs (such as blindness or color-blindness) to use Drupal.
I have created a patch for this issue and uploaded it to the following issue.
https://www.drupal.org/project/gin/issues/3534760#comment-16203134
🐛
The design is broken on the navigation layout page in dark mode
Active