271themesdonotbehavelike243
Thanks Gary, the CSS Code you provided did the job for the colors. I don't want to mess around with the color mode for our users.
I don't know if that will help you or not in your investigation, I'm really not a web developer so do what you want with the following information.
When I inspect the web page with the Edge Browser, I see that contrary to the 24.3 version, the 27.1 version reads the styles from _reboot.scss instead of feb12.css. Maybe it's a bootstrap thing, but just to let you know. And this behavior applies to all themes.
Attached is a screenshot of what I mean.
Thanks a million again for the help
Stefan