How to set color of toggle buttons

Question

I have group of toggle buttons. They are very light and disappear in the background on poor monitors with a high brightness level.

How can I properly style

Answer 1

Customizing the presentation using your own theme SASS, as the other answer shows, is a great short-term solution and gives you a lot of power over the presentation. Ideally, this would become part of the core theme declarations, so that (perhaps also ) just works without additional steps.

If you want to make this simpler in the future, give a thumbs-up to this issue.