This is a very big (work-wise) texturepack that has 3 new texture sets. It includes 3 different skintones:
dark (for dark-skinned characters), medium (for medium skin) and fair (for very pale\redhead characters, more on that in the bullet points).
Textures labeled as ALT1 are ALT1 compatible. That means that you can use Medium\Dark hands with Fair body; for example, that combination is a surprisingly good choice for Orc characters. Just mix and match however you want.
Requirements: an ALT1 pack for CBBE, UNP, DG or Vanilla. Requires the normal maps from any of ALT1 packs, so technically it's a soft dependency.