Roster palettes

Have you tried using a debugger to find out where the code is read from? It's most likely a block load instead of pulling from the specific byte.

I know from my dabblings in OAM that there are several layers of pointers to even get to the OAM data so it's not going to be even a little straightforward. Also each screen that uses OAM has its own loading code so it will need to be changed in several places, though I imagine you ought to be able to have a single transforming subroutine.

Here's the pointer list to the pointer list for OAM, so maybe searching for that address will help you find something.

Code:

D8/E917: Pointers to pointers! used to make calling simple since different characters have a different number of OAM instances
45 E9 - Terra
57 E9 - Locke
69 E9 - Cyan
7B E9 - Shadow
8D E9 - Edgar
9F E9 - Sabin
B1 E9 - Celes
C3 E9 - Strago
D5 E9 - Relm
E7 E9 - Setzer
F9 E9 - Mog
0B EA - Gau
1D EA - Gogo
2F EA - Umaro
41 EA - Soldier
44 EA - Imp
47 EA - Leo
4A EA - Bannon
4D EA - Esper Terra
50 EA - Merchant
53 EA - Ghost
56 EA - Kefka
59 EA - Soldier 2

And here are the actual pointers that point to the OAM:

Code:

OAM pointers for various things: (there are the various instances called, shop menues, save, etc...)(byte 3?)
D8/E945 - Terra
5C EA 10 - Save Screen
5C EA 10 - Pary Select
5C EA FF - Unknown/Unused
5C EA 10 - Shop
65 EA 10 - Shop Fanfare
5C EA FF - Unknown/Unused

D8/E957 - Locke
6E EA 10 - Save Screen
6E EA 10 - Party Select
6E EA FF - Unknown/Unused
6E EA 10 - Shop77
EA 10 - Shop Fanfare
6E EA FF - Unknown/Unused

D8/E969 - Cyan
80 EA 10 - Save Screen
80 EA 10 - Pary Select
80 EA FF - Unknown/Unused
80 EA 10 - Shop
89 EA 10 - Shop Fanfare
80 EA FF - Unknown/Unused

D8/E97B - Shadow
92 EA 10 - Save Screen
92 EA 10 - Pary Select
92 EA FF - Unknown/Unused92
EA 10 - Shop
9B EA 10 - Shop Fanfare
92 EA FF - Unknown/Unused

D8/E98D - Edgar
A4 EA 10 - Save Screen
A4 EA 10 - Pary Select
A4 EA FF - Unknown/Unused
A4 EA 10 - Shop
AD EA 10 - Shop Fanfare
A4 EA FF - Unknown/Unused

D8/E99F - Sabin
B6 EA 10 - Save Screen
B6 EA 10 - Pary Select
B6 EA FF - Unknown/Unused
B6 EA 10 - Shop
BF EA 10 - Shop Fanfare
B6 EA FF - Unknown/Unused

D8/E9B1 - Celes
C8 EA 10 - Save Screen
C8 EA 10 - Pary Select
C8 EA FF - Unknown/Unused
C8 EA 10 - Shop
D1 EA 10 - Shop Fanfare
C8 EA FF - Unknown/Unused

D8/E9C3 - Strago
DA EA 10 - Save Screen
DA EA 10 - Pary Select
DA EA FF - Unknown/Unused
DA EA 10 - Shop
E3 EA 10 - Shop Fanfare
DA EA FF - Unknown/Unused

D8/E9D5 - Relm
EC EA 10 - Save Screen
EC EA 10 - Pary Select
EC EA FF - Unknown/Unused
EC EA 10 - Shop
F5 EA 10 - Shop Fanfare
EC EA FF - Unknown/Unused

D8/E9E7 - Setzer
FE EA 10 - Save Screen
FE EA 10 - Pary Select
FE EA FF - Unknown/Unused
FE EA 10 - Shop
07 EB 10 - Shop Fanfare
FE EA FF - Unknown/Unused

D8/E9F9 - Mog
10 EB 10 - Save Screen
10 EB 10 - Pary Select
10 EB FF - Unknown/Unused
10 EB 10 - Shop
19 EB 10 - Shop Fanfare
10 EB FF - Unknown/Unused

D8/EA0B - Gau
22 EB 10 - Save Screen
22 EB 10 - Pary Select
22 EB FF - Unknown/Unused
22 EB 10 - Shop
2B EB 10 - Shop Fanfare
22 EB FF - Unknown/Unused

D8/EA1D - Gogo
34 EB 10 - Save Screen
34 EB 10 - Pary Select
34 EB FF - Unknown/Unused
34 EB 10 - Shop
3D EB 10 - Shop Fanfare
34 EB FF - Unknown/Unused

D8/EA2F - Umaro
46 EB 10 - Save Screen
46 EB 10 - Pary Select
46 EB FF - Unknown/Unused
46 EB 10 - Shop
4F EB 10 - Shop Fanfare
46 EB FF - Unknown/Unused

D8/EA41 - Soldier
58 EB FE - Save Screen

D8/EA44 - Imp
61 EB FE - Save Screen

D8/EA47 - Leo
6A EB FE - Save Screen

D8/EA4A - Bannon
73 EB FE - Save Screen

D8/EA4D - Esper Terra
7C EB FE - Save Screen

D8/EA50 - Merchant
85 EB FE - Save Screen

D8/EA53 - Ghost
8E EB FE - Save Screen

D8/EA56 - Kefka
97 EB FE - Save Screen

D8/EA59 - Soldier 2
A0 EB FE - Save Screen

Happy Hacking!