title: To style button with a standard SAPUI5 icon
body: <p>How to style button with a standard SAPUI5 icon? </p>
  
  <pre><code>    &lt;Button
          icon="sap-icon://notes"
           text="Справки"
          press="onOpenRef"
          class=" sapThemeHighlight-asBackgroundColor "/&gt;
  </code></pre>
  
  <p>It is necessary that the button was in the shape of a circle and green.</p>
  
  <p><img src="https://i.stack.imgur.com/3sxa5.png" alt=""></p>
  
  <p>How can I do it (preferably standard SAPUI5 methods)?
  Thank you.</p>