J6X0TP_FB_TOP
(J6X0TP_FB_TOP + ((J6X0TP_FB_BOTTOM - J6X0TP_FB_TOP) / 4) * (n))
{{ J6X0TP_FB_LEFT, J6X0TP_FB_TOP, 0, 0 },
{ J6X0TP_FB_RIGHT, J6X0TP_FB_TOP, 639, 0 },