On a pickleball court, two rules shape where feet go. Every serve is struck from behind the baseline. Every volley has to start outside the kitchen, whose lines count as part of the zone, so players who want to volley close to the net set up just behind that line. Those two strips take the shuffling, pivoting and stopping short, and they are the first place to check for a finish gone slick and color worn thin. Underneath, ground movement, sinking and tree roots can crack the asphalt or concrete and leave low spots that hold water.
Resurfacing puts back what dinks, drops and quick stops wore off. In the usual sequence, the court is cleaned, the cracks filled and the low spots leveled, then an acrylic resurfacer and textured color coats go on by squeegee, as many coats as the coating maker specifies, for an even, fine texture from baseline to baseline. The lines go back last, 2 inches wide and measured to USA Pickleball dimensions. You pick the colors, and that choice matters more than it looks: the ball has to stand out against the court, and the lines should contrast with both the court and the surround.