title: wxpython: how would I configure a box sizer so that it has a center column that moves on resize, but doesn't change dimensions(pic explanation inside)
body: <p>I can't figure out how to nest my sizers so that I get the following behavior. </p>
  
  <p><img src="https://i.stack.imgur.com/OVFqG.png" alt="enter image description here"></p>
  
  <p>When a user resizes the window, I would like for the configuration of all my widgets to stay the same, but have the central column housing everything to stay centered. </p>