data/sandbox/worldgen/placed_feature/red_wool.json
{
	"feature": "sandbox:red_wool",
	"placement": 
	[
		{
			"type": "minecraft:in_square"
		},
		{
			"heightmap": "MOTION_BLOCKING",
			"type": "minecraft:heightmap"
		},
		{
			"type": "sandbox:biome_category",
			"category": "desert"
		}
	]
}