Revert "Revert "Merge branch 'master' into wx3"". So many reverts.

This reverts commit cca7f1112a.

gui/chromeTabs.py

@@ -21,6 +21,7 @@ import wx
 import wx.lib.newevent
 import gui.utils.colorUtils as colorUtils
 import gui.utils.drawUtils as drawUtils
+import gui.utils.fonts as fonts
 from gui import bitmapLoader
 import gui.utils.fonts as fonts
 
@@ -671,6 +672,8 @@ class PFTabsContainer(wx.Panel):
         """
 
         wx.Panel.__init__(self, parent, id, pos, size)
+        if wx.VERSION >= (3,0):
+            self.SetBackgroundStyle(wx.BG_STYLE_PAINT)
 
         self.tabs = []
         width, height = size