title: wxPython: Change the header's color
body: <p>I would like to know if there is a way to change the background colour of this part of the window in wxPython:</p>
  <p><a href="https://i.stack.imgur.com/tWFrP.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/tWFrP.png" alt="window's header" /></a></p>
  <p>I already know how to change the title or the icon but I didn't find anything for the colour.</p>
  <p>I use Python 3.6 on Windows 10.</p>