Fixing the name of the file to not contain a spelling error.
Trying to move the forrest to a mutable vector, running into all sorts of monad stacking problems.
Moved to non-mutable vectors because I can figure those out well enough. Runs faster but image writing is still slow.
Fixed my terrible spelling, found the source of the lumberjack bug... maulings cause all LJs but 1 to disappear. Not fixed yet. WOW does -O2 make the new vector code fast. Except image saving.
Fixing the mauling bug, that was stupid of me.
Moving more things into constants to make them easier to adjust later. LJ list is really slow, needs to become a set.