title: custom keyboard keytext shadow remove
body: <p>i have used the custom keyboard app from the sdk and modified it as per my requirments but i couldn't modify two things</p>
  
  <ol>
  <li><p>remove drop shadow from the key text of every key on the key board. as i did not find any property in xml layout which i could use</p></li>
  <li><p>i have used custom layout for keyopreview that is the popup shown when we press any key on the keyboard, but i dont want to show preview for some particular keys such as space, enter, shift, back etc. so how could i remove the keypriview fot only those keys..</p></li>
  </ol>
  
  <p><img src="https://i.stack.imgur.com/74D6m.jpg" alt="enter image description here"></p>