bpo-33987: IDLE: Use ttk Frame on doc window and statusbar (GH-11433) (GH-22899)

(cherry picked from commit facb522d44fceaf15de6bc95de1cd680c4621c2a)

Co-authored-by: Cheryl Sabella <cheryl.sabella@gmail.com>
diff --git a/Lib/idlelib/statusbar.py b/Lib/idlelib/statusbar.py
index c071f89..ae52a56 100644
--- a/Lib/idlelib/statusbar.py
+++ b/Lib/idlelib/statusbar.py
@@ -1,4 +1,5 @@
-from tkinter import Frame, Label
+from tkinter import Label
+from tkinter.ttk import Frame
 
 
 class MultiStatusBar(Frame):
@@ -20,7 +21,8 @@
 
 
 def _multistatus_bar(parent):  # htest #
-    from tkinter import Toplevel, Frame, Text, Button
+    from tkinter import Toplevel, Text
+    from tkinter.ttk import Frame, Button
     top = Toplevel(parent)
     x, y = map(int, parent.geometry().split('+')[1:])
     top.geometry("+%d+%d" %(x, y + 175))