Bootstrap 5 Barrio theme installed on Drupal 10 question

@vhelmont
What is error in console? Provide screenshots.

Hello Ravi,

There is no error in the console. The issue is that the unselected itemes "Edit, Delete, Revision" in the navigation bar are barely readable (see read box in the below image link)

https://photos.app.goo.gl/aaeqQpimtMHwBQM37

I wanted to fix this visibility by adding CSS code to my barrio subtheme but I don't know how to do it.
Can you give me some directions how it can be done?

Regards
Albert

@vhelmont
The issue may be due to your custom work.
May i know website URL?