Changing color of a unit's battle pallet through Hex Editor

[Bob of the A]

Hello, everyone. I don't know if this has been asked before, but how do I find an individual unit's promoted pallet offset in Hex Editor? I am specifically asking this in regards to the rom hack "Order of the Crimson Arm;" I'm playing using one of the alternate tactician portraits and I'd really like to be able to set my character's promoted pallet to match their portrait. The hack creator posted instructions for how to change the player character's unpromoted battle pallet (which I was able to do successfully), but I can't find instructions anywhere on how to change their promoted pallet. Is there an easy way I can identify their promoted pallet offset in Hex Editor? I might be missing something obvious, but I honestly have no clue what I'm doing.

If it helps, I can provide screenshots of my tactician's portrait and their promoted battle animation to show the difference in color.