Int 62 Fn 0045  u - Fgdriver V4.02 - "fg_getindex" - Get Color Value For   [V]

   AX = 0045h
   BX = color index (0000h to 00FFh)

Return: AX = color value for specified color index

Notes: the FGDRIVER functions are rearranged with each major release, but
     their parameters do not change (see #3145 at AX=0000h)
   This call returns the value passed to it in text and 256-color
     graphics modes

See Also: AX=0018h,AX=0040h