title: Set app icon does not work properly (winform)
body: <p>I need to set the icon as an app icon, so I can see it at the header of main form. In order to do it</p>
  <ol>
  <li>I got my icon in <code>.ico</code> format</li>
  <li>I choose needed project, right click Properties</li>
  <li>Application -&gt; Icon and manifest</li>
  <li>Browse needed icon</li>
  <li>Run the project</li>
  </ol>
  <p>I really see that icon was updated in toolbox (footer) I mean at the bottom of the screen I see updated icon, but in my form I still see the old one.</p>
  <p><a href="https://i.stack.imgur.com/oro4C.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/oro4C.png" alt="enter image description here" /></a></p>
  <p>what am I doing wrong?</p>