make antialiased gifs for Tk, and remove unused image files

matplotlib · jenshnielsen · Jun 23, 2016 · Jun 22, 2016 · Jun 22, 2016 · f57ad723581efd61772e13e69cd998e30fcd8ba4
commit f57ad723581efd61772e13e69cd998e30fcd8ba4
diff --git a/lib/matplotlib/backends/backend_tkagg.py b/lib/matplotlib/backends/backend_tkagg.py
@@ -738,7 +738,7 @@ def release(self, event):
     def set_cursor(self, cursor):
         self.window.configure(cursor=cursord[cursor])
 
-    def _Button(self, text, file, command, extension='.ppm'):
+    def _Button(self, text, file, command, extension='.gif'):
         img_file = os.path.join(rcParams['datapath'], 'images', file + extension)
         im = Tk.PhotoImage(master=self, file=img_file)
         b = Tk.Button(

diff --git a/lib/matplotlib/mpl-data/images/back.gif b/lib/matplotlib/mpl-data/images/back.gif
diff --git a/lib/matplotlib/mpl-data/images/back.ppm b/lib/matplotlib/mpl-data/images/back.ppm
diff --git a/lib/matplotlib/mpl-data/images/back.xpm b/lib/matplotlib/mpl-data/images/back.xpm
diff --git a/lib/matplotlib/mpl-data/images/back_large.gif b/lib/matplotlib/mpl-data/images/back_large.gif
diff --git a/lib/matplotlib/mpl-data/images/back_large.ppm b/lib/matplotlib/mpl-data/images/back_large.ppm
diff --git a/lib/matplotlib/mpl-data/images/filesave.gif b/lib/matplotlib/mpl-data/images/filesave.gif
diff --git a/lib/matplotlib/mpl-data/images/filesave.ppm b/lib/matplotlib/mpl-data/images/filesave.ppm