Kurt
From PAdventures.info
Kurt
NPC Kurt can change the color of our ball. We'll find him in the northeastern part of the city Azalea.
To paint the ball, we must also have it in the slot under the order. We talk to the NPC 'skin' and then choose the color. For each painted ball, the NPC will ask for 1 diamond and 3 apricorns (we get them using the pokemon skill "Harvest" on special trees) in the color of the ball. We have 7 different colors to choose from: love (pink apricorn), fast (white apricorn), moon (yellow apricorn), lure (blue apricorn), level (red apricorn), friend (green apricorn) and heavy (black apricorn).