load-graph.cpp: Draw the background explicitly

The gdk_window_set_background_pattern() function is a little dubious
to use unless you are writing GTK+ code since the background may be
overridden by gtkwidget.c whenever the style of the widget changes.

Needed for gtk+-3.20

1 files changed, 1 insertions, 1 deletions

diff --git a/src/load-graph.h b/src/load-graph.h
index 6b76cb8..35bb62b 100644
--- a/src/load-graph.h
+++ b/src/load-graph.h
@@ -66,7 +66,7 @@ struct LoadGraph {
     GtkWidget *main_widget;
     GtkWidget *disp;
 
-    cairo_surface_t *background;
+    cairo_pattern_t *background;
 
     guint timer_index;