title: Why does my Dmgcanvas installer window contain additional files?
body: <p>Ive been using DMGCanvas to provide mac installer for my application for some years. </p>
  
  <p>Previously when testing installer I click on the dmg, a window opens with my application and a shortcut to the Applications folder, the user just drags application to that folder.</p>
  
  <p>But now there are additional dot folders listed:</p>
  
  <p>.DS_Store
  .background
  .Trashes</p>
  
  <p>in the window, </p>
  
  <p>Within DMGCanvas applicatiom itself I cannot see these files, I don't know where they have come from or how to get rid of them, what do I need to do ?</p>