Color coding is really important to me. So much so, that in WorkFlowy I used to tag things as #red, #blue, etc. just to get around this. It’s awesome Dynalist has this and even better than you can use keyboard shortcuts for it.
But, letting me customize colors would be much better. I am color-blind, so I need to play around to find colors that I can differentiate easily. Also, I already have a system in my head for exactly what colors I want to use because I generally keep it consistent between all apps. For now, I’ll keep using my color tags.