Add "Store Color"

Added the ability to store colors.  

I also added a guide screen to the first screen, but I think it looks cluttered, so I might remove it. 

In the future, I'll add some animations and juices. 

I've made it up to the light blue, but I can't seem to get to the final stage, so I've added a color save feature, but we'll see if that will help me get to the final stage.

Thanks for playing and enjoying the game,  and please check out my first game, Ghosted! :) Thanks.