title: How to change Font of Whole app
body: <p>I want to change the font of whole app.
  I am referring answer given by <strong>weston</strong> in this <a href="https://stackoverflow.com/questions/2711858/is-it-possible-to-set-font-for-entire-application">question</a> </p>
  
  <p>But this works for some devices and for some devices it doesn't work</p>
  
  <p>Can anyone help me with this. Any help would be greatly Appreciated.</p>
  
  <p>Thanx in advance.</p>