Int 62 Fn 00AA u - Fgdriver V4.02 - "fg_setcolor" - Set Current Color [V]
AX = 00AAh
BX = new color index (or text attribute in text modes)
Note: the FGDRIVER functions are rearranged with each major release, but
their parameters do not change (see #3145 at AX=0000h)
See Also: AX=0018h,AX=0040h,AX=0045h