Prevent file not exist for background image file

guake/gsettings.py

@@ -18,6 +18,7 @@
 Boston, MA 02110-1301 USA
 """
 import logging
+import os
 import subprocess
 
 from xml.sax.saxutils import escape as xml_escape
@@ -170,7 +171,9 @@ def cursor_shape_changed(self, settings, key, user_data):
     def background_image_file_changed(self, settings, key, user_data):
         """Called when the background image file settings has been changed
         """
-        self.guake.background_image_manager.load_from_file(settings.get_string(key))
+        filename = settings.get_string(key)
+        if not filename or os.path.exists(filename):
+            self.guake.background_image_manager.load_from_file(settings.get_string(key))
 
     def background_image_layout_mode_changed(self, settings, key, user_data):
         """Called when the background image layout mode settings has been changed

guake/prefs.py

@@ -1292,9 +1292,9 @@ def load_configs(self):
         self.get_widget('bold_is_bright').set_active(value)
 
         # background image file
-        value = self.settings.general.get_string('background-image-file')
-        if value:
-            self.get_widget('background_image_filechooser').set_filename(value)
+        filename = self.settings.general.get_string('background-image-file')
+        if os.path.exists(filename):
+            self.get_widget('background_image_filechooser').set_filename(filename)
 
         # background image layout mode
         value = self.settings.general.get_int('background-image-layout-mode')