The other thing that I think I want, and I usually hate stuff like this, is to have another set of tags that can be used to set the color. I have today in a column but want to have colors for different types of jobs. How hard is it to add a div for tags?
There has been talk about introducing colors and emojis for tags, like categories, but it does not exist in core Discourse just yet.
I agree it would be quite nice to have a setting in this theme component to allow kanban board columns to be shown in the color of the associated category or tag.