Banner Mask Simplification

I drew the mask over the layers instead of the other way around and that simplified the drawing code. I think everything displays the same way.

And a reset button because I kept wanting one. 

I've had a few ideas on how to simplify the drawing code some more but not thought about how to turn that into code yet.

Cool project. Was thinking the steps to show how to make the banner in-game if implemented should also give a list of all materials needed.