There are 4 spots for you to add your 4 color choices! I have included a picture of what the 4 portions are and an example of all 4 colors put together! YOU type your color choices. Portion 1 is the background for portion 2 (the chevron patterned lines).
Creating a 2 color plaid: When selecting colors- make colors 1 & 3 the same and 2 & 4 the same .