Wrong color of selected buttons at the top bar.

[Vexisu]

Describe the bug
When using a built-in Nextcloud dark theme, buttons of selected options have a nearly black background. That makes icons and text in them nearly unreadable. It happens in compact mode, as well as in tabs mode.

To Reproduce
Steps to reproduce the behavior:

1. Enable dark theme in Accessibility options.
2. Open any document in Collabora and check i.e. bold text option.

Expected behavior
The buttons background should be white with a theme's main color hint (in my case #faf4ed).

Screenshots

Current

Expected

Client details:

• OS: Fedora
• Browser: Firefox, Epiphany
• Version: 100.0.2 (64 bit), 42.2
• Device: desktop

Server details

Operating system: CentOS 8 Stream LXC

Web server: Apache/2.4.37 (centos)

Database: MariaDB

PHP version: 7.4.29

Nextcloud version: 24.0.1

Version of the richdocuments app: 6.0.1

Version of Collabora Online: CODE ver. 21.11.402

[thebearon]

Let's close this as duplicate of CollaboraOnline/online#4592 .