add the ability to craft back to white bricks

init.lua

@@ -68,5 +68,10 @@ for _, row in ipairs(xytest.dyes) do
 			output = 'xytest:xychorium_brick_'..name..' 1',
 			recipe = {'group:dye,'..craft_color_group, 'xytest:xychorium_brick_white'},
 		})
-	end
-end
+		end
+end
+minetest.register_craft({
+			type = "shapeless",
+			output = 'xytest:xychorium_brick_white 1',
+			recipe = {'dye:white', 'xytest:xychorium_brick_'..name},
+		})