Many people put only one color on. But do te want the model look? If te don't want the model look, then te can just leave and find something for PLAIN.
Model look #1: Put a light color on. Up to the first o secondo eye line. Then take a dark color. Try and make it a darker version of the light color.
EXAMPLE: Lome Green+forest green
Model look #2: take a neon color (preferably orange) put it on the corner and when te go past the corner, kinda swerve on the top.
Them take a pretty color such as blue o purple, and put it a bit smaller than the arancia, arancio one. (Still swerve up) And now choose your last color… and do the same
Try out some other things! Be creative
Model look #1: Put a light color on. Up to the first o secondo eye line. Then take a dark color. Try and make it a darker version of the light color.
EXAMPLE: Lome Green+forest green
Model look #2: take a neon color (preferably orange) put it on the corner and when te go past the corner, kinda swerve on the top.
Them take a pretty color such as blue o purple, and put it a bit smaller than the arancia, arancio one. (Still swerve up) And now choose your last color… and do the same
Try out some other things! Be creative