gui_support.py: Implement manual window centreing

resources/wx_gui/gui_about.py

@@ -4,6 +4,8 @@ import wx
 import wx.adv
 import logging
 
+from resources.wx_gui import gui_support
+
 from resources import constants
 
 
@@ -16,7 +18,7 @@ class AboutFrame(wx.Frame):
         logging.info("Generating About frame")
         super(AboutFrame, self).__init__(None, title="About", size=(350, 350), style=wx.DEFAULT_FRAME_STYLE & ~(wx.RESIZE_BORDER | wx.MAXIMIZE_BOX))
         self.constants: constants.Constants = global_constants
-        self.Centre()
+        gui_support.Centre(self, self.constants)
         self.hyperlink_colour = (25, 179, 231)
 
         self._generate_elements(self)