Android Holo Dialog has 2 backgrounds layered on top of one another

Question

The dialog looks like this. There is a layer behind the dialog itself about 10-20

Answer 1

If you want to style a Dialog then you have to use a ContextThemeWrapper:

AlertDialog.Builder mBuilder = new AlertDialog.Builder(new ContextThemeWrapper(context, android.R.style.Theme_Holo_Dialog));