title: WinAPI - Custom sizing border (WS_THICKFRAME)
body: <p>I don't like how the native sizing border looks like :</p>
  
  <p><img src="https://i.stack.imgur.com/jbuQM.png" alt="See the blue border ?"></p>
  
  <p>I would like to have something like this fancy purple border instead :
  <img src="https://i.stack.imgur.com/qm5oO.png" alt="enter image description here"></p>
  
  <p>Should I implement my <strong>own sizing border</strong> manually or should I keep using the <strong>WS_THICKFRAME window style</strong> and customize it ?</p>
  
  <p>And if I can customize it, I'd like it to be done without nasty hacks too...</p>