title: Angular material, when adding a ripple it will fill instead of disappearing
body: <p>I'm developing a framework on top of angular material for easy usage. I want to know if there is a fill version of the <code>md-ink-ripple</code> directive so that the ripple is an actual fill color when it is been set.</p>
  
  <pre><code>&lt;myDiv md-ink-ripple&gt;
     &lt;div class="md-ripple-container"&gt;
        // so in an active state this will fill "myDiv" with color and stay fully sized
        &lt;div class="md-ripple"&gt;&lt;/div&gt;
     &lt;/div&gt;
  &lt;/myDiv&gt;
  </code></pre>