desaturate textures, remove bloaty mangrove exif

mods/ITEMS/mcl_mangrove/init.lua

@@ -95,6 +95,8 @@ minetest.register_node("mcl_mangrove:mangroveleaves", {
 	place_param2 = 1, -- Prevent leafdecay for placed nodes
 	tiles = {"mcl_mangrove_leaves.png"},
 	paramtype = "light",
+	paramtype2 = "color",
+	palette = "mcl_core_palette_grass.png",
 	groups = {handy=1,shearsy=1,swordy=1, leafdecay=10, flammable=2, leaves=1, deco_block=1, dig_by_piston=1, fire_encouragement=30, fire_flammability=60},
 	_mcl_shears_drop = true,
 	sounds = mcl_sounds.node_sound_leaves_defaults(),