[eog] help: Cover the Background section under Image View Preferences

[Andre Klapper <aklapper src gnome org>]

commit c5d3c071763e395ddbdc1fc8d0a85f78c9780fef
Author: Andre Klapper <a9016009 gmx de>
Date:   Thu Mar 28 19:50:03 2019 +0100

    help: Cover the Background section under Image View Preferences

 help/C/preferences.page | 4 ++++
 1 file changed, 4 insertions(+)
---
diff --git a/help/C/preferences.page b/help/C/preferences.page
index b3be1b6d..5e1ba59b 100644
--- a/help/C/preferences.page
+++ b/help/C/preferences.page
@@ -47,6 +47,10 @@ select <gui style="menuitem">Preferences</gui> to start changing the preferences
     <p>Automatic orientation does not work with all pictures; only pictures 
     taken using a camera that saves Exif orientation metadata will be rotated.</p>
   </item>
+  <item>
+    <title>Background</title>
+    <p>Here you can select a custom background color.</p>
+  </item>
   <item>
     <title>Transparent parts</title>
      <p>Select one of the following