[gnome-boxes/housekeeping-autumn-2021: 8/9] welcome-tutorial: Handle error when failing to load css

[Felipe Borges <felipeborges src gnome org>]

commit 04c249b9ff97b042ec3e58b738ad12cde784b36f
Author: Felipe Borges <felipeborges gnome org>
Date:   Wed Oct 13 15:34:42 2021 +0200

    welcome-tutorial: Handle error when failing to load css

 src/welcome-tutorial.vala | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)
---
diff --git a/src/welcome-tutorial.vala b/src/welcome-tutorial.vala
index be920cae..88b853b6 100644
--- a/src/welcome-tutorial.vala
+++ b/src/welcome-tutorial.vala
@@ -41,7 +41,11 @@ private void set_background_color (Gdk.RGBA color) {
           }
         """.printf (color.to_string ());
 
-        provider.load_from_data (css);
+        try {
+            provider.load_from_data (css);
+        } catch (GLib.Error error) {
+            warning ("Failed to load css for setting background color: %s", error.message);
+        }
     }
 
     [GtkCallback]