title: How big should Action Bar(Toolbar) icons be in the new Android Material design?
body: <p>I tried searching the design guidelines, but I couldn't find anything related to this. I am trying to figure out the optimal size for Action bar icons in the new L release. Here is an example of what I am trying to achieve: </p>
  
  <p><img src="https://i.stack.imgur.com/4HOqO.png" alt="screenshot"></p>
  
  <p>I tried the previous 48dp size, but it looks a lot bigger than the ones in that picture. </p>