ik the gem on the champion frame card is Yellow because that's the color of the Rarity, but it would be alot cooler if those gems are Different on each champion :
CRLeaks on Twitter: "The helpful datamining series has returned! Here's a blank Champion and Legendary frame for your photoshopping needs! Have fun making your own cards. https://t.co/wjHUlwqYor" / Twitter