boolean hasLed = getResources().getBoolean(R.bool.has_rgb_notification_led)
                || getResources().getBoolean(R.bool.has_dual_notification_led)
                || getResources().getBoolean(R.bool.has_single_notification_led);

        if (!hasLed) {
            ((PreferenceCategory) prefSet.findPreference(GENERAL_CATEGORY))
                    .removePreference(mTrackballScreen);
        }