I've thought about what colors to use, vibrancy and excitement on the color wheel is generally represented by warm tones of yellow, orange, and in some cases even red. But red can also be a sign of danger, so I eliminated that one out of my consideration. Certain shades of green represent happiness and joy, while shades of blue and aqua represent trust, relaxation and contentment. If you have a particular color you would like to see, I'll be glad to revise :)