Skeetendo

GS: 0xad45, C: 0xad86 - table of palettes for 251 pokemon. Every pokemon has 8 bytes of data, for 2 colors in normal and shiny mode.

a hex editor

a color is defined by values of red, green and blue.

each color is two bytes long. with 8 bits in a byte, we can only fit the three of them into 16 bits.

the nearest number divisible by 3 is 15, so we just ignore the last bit and use 5 bits for each one.

the max value for 5 bits is 32 (2^5). usually you will find rgb definitions in values out of 256 (2^8). you can just divide by 8 (2^3) to get it in 5 bits.

the color order goes from low to high, so you'd have:

0 bbbbb ggggg rrrrr

or

0bbbbbgg gggrrrrr

since the game boy reads palettes in little endian (low byte first), swap the bytes if you are editing the rom in a hex editor.

pokemon palettes only have two colors, since black and white are always used. the shiny palette comes right after the normal one. this goes on for each pokemon.

trainer palettes work the same way. they're right after the pokemon palettes in gold (0xb51d), and at 0xb0d2 in crystal.

also for crystal, pokemon palettes are at 0xa8d6, not 0xad86.

i,m still not understand about hex editing because im beginner at it...
Can you give me step by step how to do it ?

Okay...
But,Can you give me an example how you change the palette color and this time explain step by step because i still confused about hex editing

I hope it help u
http://dc693.4shared.com/download/tuirH … 8-223062d3