I don't know what is on the to-do list or if this is known (I searched
for textattrex and found no posts). But currently, the RichTextCtrl
still needs a TextAttrEx for SetDefaultStyle and possibly other
functions requiring a style.
In the recent changes from wxpython: "This means that instead of using
wx.richtext.RichtextAttr or TextAttrEx you'll just use wx.TextAttr
instead."
Sample code showing this problem:
text = wx.richtext.RichTextCtrl(self, -1, size=(100,100))
#text.SetDefaultStyle(wx.TextAttr("White", "Black")) #doesn't work
text.SetDefaultStyle(wx.richtext.TextAttrEx()) #works