Can the theme colours ( color - us ) be customized? I tried adding in theme {color: #db487e;} into the site css. Doesn’t seem to work.
Yes, the theme colors can be customized, but they are used in many places, it’s not a simple endeavor. You’d have to inspect all of the CSS and add classes to override that color everywhere it’s used.
I know there are future plans to strip more of the opinion out of the CSS framework used, which will make this kind of thing much easier, but I don’t know the timeline on that.