diff -r 0879f2c53289 Lib/idlelib/EditorWindow.py
--- a/Lib/idlelib/EditorWindow.py	Fri Jul 31 09:02:09 2015 +1200
+++ b/Lib/idlelib/EditorWindow.py	Thu Jul 30 15:40:44 2015 -0700
@@ -9,6 +9,7 @@
 from tkinter import *
 import tkinter.simpledialog as tkSimpleDialog
 import tkinter.messagebox as tkMessageBox
+from tkinter import ttk
 import traceback
 import webbrowser
 
@@ -145,13 +146,14 @@
         self.recent_files_path = os.path.join(idleConf.GetUserCfgDir(),
                 'recent-files.lst')
         self.text_frame = text_frame = Frame(top)
-        self.vbar = vbar = Scrollbar(text_frame, name='vbar')
+        self.vbar = vbar = ttk.Scrollbar(text_frame, name='vbar')
         self.width = idleConf.GetOption('main', 'EditorWindow',
                                         'width', type='int')
         text_options = {
                 'name': 'text',
                 'padx': 5,
                 'wrap': 'none',
+                'highlightthickness': 0,
                 'width': self.width,
                 'height': idleConf.GetOption('main', 'EditorWindow',
                                              'height', type='int')}
@@ -413,6 +415,7 @@
         return "break"
 
     def set_status_bar(self):
+        sep = ttk.Separator(self.top, orient=HORIZONTAL)
         self.status_bar = self.MultiStatusBar(self.top)
         if sys.platform == "darwin":
             # Insert some padding to avoid obscuring some of the statusbar
@@ -421,6 +424,7 @@
         self.status_bar.set_label('column', 'Col: ?', side=RIGHT)
         self.status_bar.set_label('line', 'Ln: ?', side=RIGHT)
         self.status_bar.pack(side=BOTTOM, fill=X)
+        sep.pack(side=BOTTOM, fill=X)
         self.text.bind("<<set-line-and-column>>", self.set_line_and_column)
         self.text.event_add("<<set-line-and-column>>",
                             "<KeyRelease>", "<ButtonRelease>")
diff -r 0879f2c53289 Lib/idlelib/MultiStatusBar.py
--- a/Lib/idlelib/MultiStatusBar.py	Fri Jul 31 09:02:09 2015 +1200
+++ b/Lib/idlelib/MultiStatusBar.py	Thu Jul 30 15:40:44 2015 -0700
@@ -1,17 +1,18 @@
 from tkinter import *
+from tkinter import ttk
 
-class MultiStatusBar(Frame):
+class MultiStatusBar(ttk.Frame):
 
     def __init__(self, master=None, **kw):
         if master is None:
             master = Tk()
-        Frame.__init__(self, master, **kw)
+        ttk.Frame.__init__(self, master, **kw)
         self.labels = {}
 
     def set_label(self, name, text='', side=LEFT):
         if name not in self.labels:
-            label = Label(self, bd=1, relief=SUNKEN, anchor=W)
-            label.pack(side=side)
+            label = ttk.Label(self)
+            label.pack(side=side, pady=0, padx=4)
             self.labels[name] = label
         else:
             label = self.labels[name]