title: What is the recommended ActionBar icon size in Material Design (Android API 21+)?
body: <p>First of all, this question is related: <a href="https://stackoverflow.com/questions/25235896/how-big-should-action-bartoolbar-icons-be-in-the-new-android-material-design/27869840#27869840">How big should Action Bar(Toolbar) icons be in the new Android Material design?</a></p>
  
  <p>In the related question it is clear that the touch target size of the action bar icons should be 48dp. I would like to get a couple of things clarified regarding these icon sizes in Material Design:</p>
  
  <ol>
  <li><p>On this page: <a href="http://www.google.com/design/spec/layout/metrics-keylines.html#metrics-keylines-touch-target-size" rel="nofollow noreferrer">Material Design Keylines - Touch Target Size</a> there is two icons, the search icon is tiny (24dp) and the profile icon is much bigger (40dp). Is there any recommendation on how big the icon should be, within the 48dp touch target? It looks like the action bar icons that you can download from the Material Design site is 40dp (i.e. as the profile button in the linked site).</p></li>
  <li><p>I assume that the old Iconography instructions are out of date for Material Design, is that correct? This page says that the icons should be 32dp with a 24dp icon: <a href="http://developer.android.com/design/style/iconography.html" rel="nofollow noreferrer">Iconography</a>.</p></li>
  <li><p>I also noticed that <a href="http://romannurik.github.io/AndroidAssetStudio/" rel="nofollow noreferrer">Android Asset Studio</a> and <a href="http://shreyasachar.com/AndroidAssetStudio/" rel="nofollow noreferrer">Android Asset Studio for Material Design</a> generate <strong>xxhdpi</strong> action bar icons with <strong>96x96 pixels</strong> but I assumed they should be <strong>144x144 pixels</strong>. I assume this since the xxhdpi 48dp action bar icons in the icons from the Material Design site is 144x144 pixels. Is it correct that Material Design ActionBar icons should be 144x144 pixels for xxhdpi?</p></li>
  </ol>