rtbuf/rtbuf

diff --git a/gtk/image-missing.png b/gtk/image-missing.png
new file mode 100644
index 0000000..255d81d
Binary files /dev/null and b/gtk/image-missing.png differ
diff --git a/gtk/rtbuf_gtk.gresource.xml b/gtk/rtbuf_gtk.gresource.xml
index 59fdc3c..b8d891a 100644
--- a/gtk/rtbuf_gtk.gresource.xml
+++ b/gtk/rtbuf_gtk.gresource.xml
@@ -6,4 +6,7 @@
     <file preprocess="xml-stripblanks">rtbuf_output_widget.ui</file>
     <file preprocess="xml-stripblanks">rtbuf_widget.ui</file>
   </gresource>
+  <gresource prefix="/org/gtk/libgtk/icons/24x24/status/">
+    <file>image-missing.png</file>
+  </gresource>
 </gresources>