Processing-3-Max-Kaleidoscope

A major alteration to Daniel Shiffman's Kaleidoscope Snowflake. His video can be seen here: https://www.youtube.com/watch?v=R3C2giDfmO8&t=1s What I added to this sketch: Rotated to sketch 90 degrees(more visually pleasing). The ability to save the created design with either a black background or a transparent background. Up to 60 symmetries. Color or snowflake mode.(snowflake mode defaults to 6 symmetry). Undo single last drawn right mouse drag to mouse release(plan to create an undo array). TODO: erase. Here is where I had problems. I could erase to black but that shows up in saving transparent. So trying to erase to transparent.