Describe the bug
When using a "callout" block for "info", "warning", "success" or "danger", the colors are too bright and it is very hard to see the actual icon-

To Reproduce
Steps to reproduce the behavior:

1. Format a text block as "Info callout", "Success callout", "Warning callout" or "Danger callout"
2. See the result with very bright colors which make it nearly impossible to identify the icons.

Expected behavior
The colors are clearly visible.

Screenshots

Server details:

• Collectives app version: 3.1.2
• Nextcloud version: 32.0.0
• PHP Version: 8.3
• Database: MariaDB

Client details:
Happens with all browsers (Firefox, Chrome, Vivaldi)