Colored tattoo's for franklin: 

004 = (tiger/serpent on back) 
007 = (sleeve left arm)
011 = (thug life+chain on chest)
013 = (spider on neck)
037 = (los santos bills+guns on stomach)

Use OPENIV and replace files in:

x64v/models/cdimages/ped_sp_overlay_txds.rpf

Dont use online.
Always make a backup.

