title: how do I change the style of a button in android?
body: <p>I want to change the style of a button in an android app. here is a picture that has both kinds of buttons, the one that I have now, and the one that I want to switch to:  </p>
  
  <p><img src="https://i.stack.imgur.com/mzIIm.png" alt="enter image description here"></p>
  
  <p>the kinds of buttons that I am using now, look like any of the letters on that keyboard. the ones that I want to use like like the arrows. I would I go about changing this. I prefer to do it in xml but I can do it in java if that is the only way. Thanks</p>