diff --git a/guake/gsettings.py b/guake/gsettings.py
index 2f60afa0e..766a3d451 100644
--- a/guake/gsettings.py
+++ b/guake/gsettings.py
@@ -72,8 +72,9 @@ def __init__(self, guake_inst):
         settings.style.onChangedValue('cursor-blink-mode', self.cursor_blink_mode_changed)
         settings.style.onChangedValue('cursor-shape', self.cursor_shape_changed)
         settings.general.onChangedValue('background-image-file', self.background_image_file_changed)
-        settings.general.onChangedValue('background-image-layout-mode',
-                                        self.background_image_layout_mode_changed)
+        settings.general.onChangedValue(
+            'background-image-layout-mode', self.background_image_layout_mode_changed
+        )
 
         settings.general.onChangedValue('use-scrollbar', self.scrollbar_toggled)
         settings.general.onChangedValue('history-size', self.history_size_changed)
diff --git a/guake/guake_app.py b/guake/guake_app.py
index 45555ef14..5fc9d7239 100644
--- a/guake/guake_app.py
+++ b/guake/guake_app.py
@@ -735,7 +735,9 @@ def load_config(self):
             self.settings.general, 'quick-open-command-line'
         )
         self.settings.general.triggerOnChangedValue(self.settings.general, 'background-image-file')
-        self.settings.general.triggerOnChangedValue(self.settings.general, 'background-image-layout-mode')
+        self.settings.general.triggerOnChangedValue(
+            self.settings.general, 'background-image-layout-mode'
+        )
         self.settings.style.triggerOnChangedValue(self.settings.style, 'cursor-shape')
         self.settings.styleFont.triggerOnChangedValue(self.settings.styleFont, 'style')
         self.settings.styleFont.triggerOnChangedValue(self.settings.styleFont, 'palette')
diff --git a/guake/prefs.py b/guake/prefs.py
index 63e5c91c6..8cb7cf712 100644
--- a/guake/prefs.py
+++ b/guake/prefs.py
@@ -634,8 +634,10 @@ def on_font_style_font_set(self, fbtn):
         self.settings.styleFont.set_string('style', fbtn.get_font_name())
 
     def on_background_image_file_chooser_file_changed(self, fc):
-        self.settings.general.set_string('background-image-file',
-                                         fc.get_filename() if fc.get_filename() else '')
+        self.settings.general.set_string(
+            'background-image-file',
+            fc.get_filename() if fc.get_filename() else ''
+        )
 
     def on_background_image_file_remove_clicked(self, btn):
         filechooser = self.prefDlg.get_widget('background_image_filechooser')
diff --git a/guake/utils.py b/guake/utils.py
index 630c11704..89aeb5fd8 100644
--- a/guake/utils.py
+++ b/guake/utils.py
@@ -323,6 +323,7 @@ class ImageLayoutMode(enum.IntEnum):
 
 
 class BackgroundImageManager:
+
     def __init__(self, window, filename=None, layout_mode=ImageLayoutMode.SCALE):
         self.window = window
         self.bg_surface = self.load_from_file(filename) if filename else None
@@ -352,9 +353,7 @@ def load_from_file(self, filename):
             raise FileNotFoundError('Background file not found: %s' % (filename))
         img = Gtk.Image.new_from_file(filename)
         pixbuf = img.get_pixbuf()
-        surface = cairo.ImageSurface(cairo.FORMAT_ARGB32,
-                                     pixbuf.get_width(),
-                                     pixbuf.get_height())
+        surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, pixbuf.get_width(), pixbuf.get_height())
         cr = cairo.Context(surface)
         Gdk.cairo_set_source_pixbuf(cr, pixbuf, 0, 0)
         cr.set_operator(cairo.OPERATOR_SOURCE)
@@ -414,9 +413,9 @@ def draw(self, widget, cr):
 
         # Step 1. Get target surface
         #         (paint background image into widget size surface by layout mode)
-        surface = self.render_target(widget.get_allocated_width(),
-                                     widget.get_allocated_height(),
-                                     self.layout_mode)
+        surface = self.render_target(
+            widget.get_allocated_width(), widget.get_allocated_height(), self.layout_mode
+        )
 
         cr.save()
         # Step 2. Paint target surface to context (in our case, the RootTerminalBox)
@@ -433,9 +432,9 @@ def draw(self, widget, cr):
         #         so we paint our child (again, in lifecycle view) into a similar surface.
         #
         child = widget.get_child()
-        child_surface = cr.get_target().create_similar(cairo.CONTENT_COLOR_ALPHA,
-                                                       child.get_allocated_width(),
-                                                       child.get_allocated_height())
+        child_surface = cr.get_target().create_similar(
+            cairo.CONTENT_COLOR_ALPHA, child.get_allocated_width(), child.get_allocated_height()
+        )
         child_cr = cairo.Context(child_surface)
 
         # Re-paint child draw into child context (which using child_surface as target)