Hello there!
You can change the color, opacity, border. You can also add animations. I don’t think there is much else you can do. Any ways, you can do this without using code. I don’t think this is corvid related. This forum is for corvid related topics.
You can search help articles: https://support.wix.com/en/
Do you know any code for this @russian-dima ? If you think this isn’t corvid related, please close this post.
Arthur 