Int 62 Fn 00A6  u - Fgdriver V4.02 - "fg_setattr" - Set Text-mode Charact  [V]

   AX = 00A6h
   BX = foreground
   CX = background
   DX = blink (0000h nonblinking, 0001h blink)

Notes: the FGDRIVER functions are rearranged with each major release, but
     their parameters do not change (see #3145 at AX=0000h)
   This call is ignored in graphics modes

See Also: AX=000Bh,AX=003Ah,AX=0048h