Problem with button color & translation of registration page

Hi there, I have 2 little problems in directory theme:

1. I can’t change the button colors anymore with the color tool. All my search buttons are in a strange green shade now. Where can I change it if color tool does not work anymore with that (I can only change size of the button)

2. where can I translate the content of the registration page? I could not find it in the language setup.

Thank you for your support and have a nice weekend!