Yes, that’s no problem. It’s related to the other issue yesterday. They are all the result of a change in the original colors theme (in webtrees 1.5) which was really unnecessary. I made the mistake of assuming they knew what they were doing 🙁
There may be others, so just let me know if you find any. I don’t have time to check everything in every theme on my own.
For this one add to /themes/colors/css/colors.css, at line 748: