Are you a Minecraft content creator or someone who makes Minecraft machinimas? Then I have an add-on for you. This add-on provides Green, Blue, and Red screens that YOU can chroma key out to make a custom background.
Select version for changelog:
-Added Chroma Key Blocks to the Creative Inventory
-File is now a .mcaddon
-Changed the text of the blocks to match the color of the block.
-Added reuploading, and the Monetization policy at the end of the article.