title: Insert a filled star into the text of a WinForms 'TreeNode'
body: <p>I need to insert a star shape into a string which will be assigned as the text of a <code>TreeNode</code>. Is this possible?</p>
  
  <p>Each <code>TreeNode</code> has different levels and can be annotated by these stars. Some nodes have a single star, some have two, and some have no stars. The star(s) will always appear at the end of the text string. For example:</p>
  
  <pre class="lang-none prettyprint-override"><code>SU450**
  </code></pre>