title: transparent tab control appears white
body: <p>Anyway, I'm having a little difficulty with tab control. When I drag a new tab control onto a form, it appears white, rather than the grey (system colour) I was expecting. </p>
  
  <p>When I look at the properties, its colour is set to web-transparent. Ok, so it should be transparent then (it isn't letting anything behind it show through). Setting the tab control back colour manually back to the system grey kind of works, but the tabs at the top still show as white. I'm assuming I could somehow change their colour as well, but I'm quickly getting into the realms of changing so many values from default, I'm clearly missing something type territory. I've googled every varient of "transparent tab control draws white" as I can, and although I found something to do with windows profiles, this seemed mostly confined to access 2003 using the vb you got access to in access. </p>
  
  <p>I'm looking for any explanation as to:</p>
  
  <ul>
  <li>what I need to do to correctly use transparency with tab controls</li>
  <li>what I'm mis-understanding as the purpose of transparency in tab controls</li>
  <li>how to easily change all the colours of the appropriate parts of the tab control to not be transparent.</li>
  </ul>
  
  <p>I'm looking at windows forms for an MCTS, so please don't give a "you should use X instead" type answer.</p>