Add this to your colors.dfn if you need to change they number thats fine.
//gargoyle skins
[RANDOMCOLOR 44]
{
0x86DB
0x86DC
0x86DD
0x86DE
0x86DF
0x86E0
0x86E1
0x86E2
0x86E3
0x86E4
0x86E5
0x86E6
}
//gargoyle horn colors
[RANDOMCOLOR 45]
{
0x709
0x70B
0x70D
0x70F
0x711
0x763
0x765
0x768
0x76B
0x6F3
0x6F1
0x6EF
0x6E4
0x6E2
0x6E0
0x709
0x70B
0x70D
}
[RANDOMCOLOR 44]
{
0x86DB
0x86DC
0x86DD
0x86DE
0x86DF
0x86E0
0x86E1
0x86E2
0x86E3
0x86E4
0x86E5
0x86E6
}
//gargoyle horn colors
[RANDOMCOLOR 45]
{
0x709
0x70B
0x70D
0x70F
0x711
0x763
0x765
0x768
0x76B
0x6F3
0x6F1
0x6EF
0x6E4
0x6E2
0x6E0
0x709
0x70B
0x70D
}