Added check for invalid tiles for JP.Tile.Tile.Colour() so they're not manipulated like normal
Some extra work on that, but leaving it unused for now, who knows, something may come of it one day
Hopeful fix for options menu button not working always
Changed heights on various tiles to avoid sharp corner/edge oddity issue
Fixed an issue with world gen where the FPS would slowly irreversably decrease if window lost focus
Tweaked heightmap/moisturemap gen
Increased Gaussian kernel size to 11 by 7
Added some commented out code about rendering the height map instead of the normal map