You don't have to be Van Gogh to know: You can't judge a marker color by its cap Swatching out your art supplies BEFORE you use them is super important and can keep you from making some very grave color mistakes when it comes to masterpiece time But, if you're the proud new owner of that 3,000 pencil set it also can be boooooooring Artist Karen Campbell has gathered a fun group of her artsy friends to help you spice up your swatching options in...