- Only placeable and obtainable blocks - Hydrate coral blocks with water layer underneath - Not biome-dependant colors like leaves - How to handle blocks with different textures for sides/top? - Condense similar variants (cracked, chiseled, etc) in same blockspace if similar enough? - Include transparent blocks? - Blocks like grate with transparency? What block to put under? - Ice blocks will melt near light - Include hazardous blocks like magma? - Animated textures like prismarine? How to place in map? How to find average hue over time? - Include blocks like some glazed terracotta which have two contrasting colors?