title: Newer versions of Android Studio and only two drawable directory - drawable and drawable-v21
body: <p>With older versions of Android Studio, all of the drawable bucket folders were created by default (i.e. drawable-mdpi, drawable-hdpi, etc.).  In newer versions of Android Studio, it only provides drawable and drawable-v21.  Why is that?  </p>
  
  <p>Is there a reason that Android (in its infinite wisdom) no longer gives you the separate bucket folders?  </p>
  
  <p>Just to note, I know you can just add them manually, but I want to make sure there isn't some new best practice reason to not use those folders anymore. </p>