ofwfb_pix32
blank = ofwfb_pix32(sc, ofwfb_background(SC_NORM_ATTR));
fg = ofwfb_pix32(sc, ofwfb_foreground(a));
bg = ofwfb_pix32(sc, ofwfb_background(a));
fg = ofwfb_pix32(sc, ofwfb_foreground(SC_NORM_ATTR));
bg = ofwfb_pix32(sc, ofwfb_background(SC_NORM_ATTR));