The problem is: there are about hundred color code lines and I had to edit each one manually, then restart xfire and see if I had chosen the right color tone (and no, the color code is not defined 0-255, but color channels can also be weaken => [-255...255] )
Next thing are problematic too tiny bitmaps with limited color palette - seems like they accept even less pixels than they look like :/
So making all this takes some time -.-