Adding color to scrolling is easy and fun. It saves you a lot of time and the cost of purchasing many colors of paint, brushes and the time waiting for the paint to dry between coats. This is not a new process however, Fisher-Price toy company made their toys this way back in 1940 and 1950 before plastic came along.
You simply glue artwork to your project instead of painting. You can use clip art printed from your computer or make up your own artwork drawings as I have done. You do not have