here is the code cave
Using Olly, press ctrl and g, then navigate to
004355FA
004355FA C745 08 207699>MOV DWORD PTR SS:[EBP+8],16997620
00435601 |. EB 10 JMP SHORT after_np.00435613
00435603 C745 08 387299>MOV DWORD PTR SS:[EBP+8],16997238
0043560A |. EB 07 JMP SHORT after_np.00435613
0043560C C745 08 506E99>MOV DWORD PTR SS:[EBP+8],16996E50
So
379154000
is the id for the red treasure chest, convert that to hex data using windows calculator produces
16996E50
So as you can see
0043560C C745 08 506E99>MOV DWORD PTR SS:[EBP+8],16996E50
this part is for the RED box reward
So to change the red box into lets see a +8 sherion (sherion +8 ID = '119301508' changed to HEX = '71C6584'), you will need to change this line:
0043560C C745 08 506E99>MOV DWORD PTR SS:[EBP+8],16996E50
To this
0043560C C745 08 506E99>MOV DWORD PTR SS:[EBP+8],71C6584
