The color coats are the part of an acrylic court you actually play on, and they do three jobs at once. The pigment gives the court its color, chosen by you from the coating maker’s chart. The silica sand mixed into each batch gives your shoes grip. And the size of that sand, plus whether a sand-free finish coat goes on top, sets the pace: how much the bounce slows the ball. Colors can change at every recoat, and so can pace.
The lines are the last layer and the one every call depends on. The ITF Rules of Tennis and the USA Pickleball rulebook both want lines in one color that clearly contrasts with the court. Both measure to the outside edges of the boundary lines, and both count a ball touching a line as in, with one exception: a pickleball serve that lands on the kitchen (non-volley zone) line is out. So a line needs the right width, the right spot and an edge you can see daylight against. We stripe after a color job, repaint lines gone gray, and add pickleball lines to tennis courts.