Optimize flake areas
Optimize flake areas

So far, we've been drawing all flakes in canvas of the size of the
original randomly drawn flake.

All following flakes of the size-canvas-array are smaller than that.

Now we just use the smaller size of the projected flake image plus
2 times the current blur value as size.

This has the added advantage that we keep the calculated flake sizes
as canvas sizes. We will need that for our next step.

fforw/snowy