Mud should be generated in normal swamp!

Mud should be generated in normal swamp and in lakes. Maybe some patches in jungle and bamboo jungle or rare in other biomes..

I feel like many new features are mostly used in new structures and biomes and forgotten to implement in others. For example decorated pots can be used as decoration or as loot in pyramids and villages, or some mineshafts, Hanging signs, can be used too, Packed mud and bricks in villages. And i really hope new vault block and spawner is not the same case.