minetest.register_decoration({
	deco_type = "simple",
	place_on = {"nightshade:nightshade_dirt_with_grass"},
	sidelen = 16,
	fill_ratio = 0.02,
	biomes = {"nightshade"},
	decoration = {
"japaneseforest:red_firefly", "japaneseforest:orange_firefly","japaneseforest:violet_firefly", "japaneseforest:black_firefly",
	}
})