Fix the custom color dialog to resize properly

pronterface.py

@@ -1600,15 +1600,12 @@ class ButtonEdit(wx.Dialog):
         wx.Dialog.__init__(self, None, title=_("Custom button"),style=wx.DEFAULT_DIALOG_STYLE|wx.RESIZE_BORDER)
         self.pronterface=pronterface
         topsizer=wx.BoxSizer(wx.VERTICAL)
-        vbox=wx.StaticBoxSizer(wx.StaticBox(self,label=""),wx.VERTICAL)
-        topsizer.Add(vbox,1,wx.ALL+wx.EXPAND)
         grid=wx.FlexGridSizer(rows=0,cols=2,hgap=4,vgap=2)
         grid.AddGrowableCol(1,1)
-        vbox.Add(grid,0,wx.EXPAND)
-        grid.Add(wx.StaticText(self,-1, _("Button title")), 0, wx.BOTTOM+wx.RIGHT)
+        grid.Add(wx.StaticText(self,-1, _("Button title")), 0, wx.BOTTOM|wx.RIGHT)
         self.name=wx.TextCtrl(self,-1,"")
         grid.Add(self.name,1,wx.EXPAND)
-        grid.Add(wx.StaticText(self, -1, _("Command")), 0, wx.BOTTOM+wx.RIGHT)
+        grid.Add(wx.StaticText(self, -1, _("Command")), 0, wx.BOTTOM|wx.RIGHT)
         self.command=wx.TextCtrl(self,-1,"")
         xbox=wx.BoxSizer(wx.HORIZONTAL)
         xbox.Add(self.command,1,wx.EXPAND)
@@ -1616,14 +1613,14 @@ class ButtonEdit(wx.Dialog):
         self.macrob=wx.Button(self,-1,"..",style=wx.BU_EXACTFIT)
         self.macrob.Bind(wx.EVT_BUTTON,self.macrob_handler)
         xbox.Add(self.macrob,0)
-        grid.Add(xbox)
-        grid.Add(wx.StaticText(self,-1, _("Color")),0,wx.BOTTOM+wx.RIGHT)
+        grid.Add(xbox,1,wx.EXPAND)
+        grid.Add(wx.StaticText(self,-1, _("Color")),0,wx.BOTTOM|wx.RIGHT)
         self.color=wx.TextCtrl(self,-1,"")
         grid.Add(self.color,1,wx.EXPAND)
-        topsizer.Add(self.CreateSeparatedButtonSizer(wx.OK+wx.CANCEL),0,wx.EXPAND)
-        self.SetSizer(topsizer)        
-        topsizer.Layout()
-        topsizer.Fit(self)
+        topsizer.Add(grid,0,wx.EXPAND)
+        topsizer.Add( (0,0),1)
+        topsizer.Add(self.CreateStdDialogButtonSizer(wx.OK|wx.CANCEL),0,wx.ALIGN_CENTER)
+        self.SetSizer(topsizer)
     def macrob_enabler(self,e):
         macro = self.command.GetValue()
         valid = False