Not able to modified Default Buttons Text style

[airtel121]

1. There is no option to change text size , text color , text caps or not.
   There should be an option via xml as well as programmatic way.

2. If we get Button or TextView instance inside onValueChanged method then it would great for run time customization.

new ToggleButton.OnValueChangedListener() {
@OverRide
public void onValueChanged(int position) {
CharSequence[] text = mstbUsage.getTexts();
UiUtils.showToast(mActivity,text[position].toString());
}
}