It’s important for you to know the principles of design so you’re aware of all the components you have control over when you’re designing your composition. Having this knowledge will help you make intelligent decisions to create the effect you want.
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Understand The Basics Of Color Theory
Understanding color theory is very useful in helping you learn to mix your own colors to create a cohesive palette, knowing how to talk and analyze color theory to give and receive constructive criticism, and in choosing an appealing color scheme for your work.