- ao_text(&fb, &VOLT_FONT, BOX_X, VALUE_Y, str, 0x00000000, AO_COPY);
- ao_text(&fb, &SMALL_FONT, RSSI_LABEL_X, LABEL_Y, "Signal Strength", 0x00000000, AO_COPY);
+ ao_text(&fb, &VOLT_FONT, BOX_X, VALUE_Y, str, AO_BLACK, AO_COPY);
+ ao_text(&fb, &SMALL_FONT, RSSI_LABEL_X, LABEL_Y, "Signal Strength", AO_BLACK, AO_COPY);