diff -urp gnome-shell-3.33.91.orig/data/gnome-shell-theme.gresource.xml gnome-shell-3.33.91/data/gnome-shell-theme.gresource.xml
--- gnome-shell-3.33.91.orig/data/gnome-shell-theme.gresource.xml	2019-08-21 15:00:39.000000000 -0500
+++ gnome-shell-3.33.91/data/gnome-shell-theme.gresource.xml	2019-09-04 15:20:19.511263425 -0500
@@ -31,5 +31,6 @@
     <file>toggle-on.svg</file>
     <file>toggle-on-dark.svg</file>
     <file>toggle-on-hc.svg</file>
+    <file>sle-background.png</file>
   </gresource>
 </gresources>
diff -urp gnome-shell-3.33.91.orig/data/theme/gnome-shell-sass/_common.scss gnome-shell-3.33.91/data/theme/gnome-shell-sass/_common.scss
--- gnome-shell-3.33.91.orig/data/theme/gnome-shell-sass/_common.scss	2019-08-21 15:00:39.000000000 -0500
+++ gnome-shell-3.33.91/data/theme/gnome-shell-sass/_common.scss	2019-09-04 15:22:50.500063729 -0500
@@ -1912,6 +1912,9 @@ StScrollBar {
   max-width: 23em;
 }
 
+.login-dialog-sle {
+  background: #2e3436 url(sle-background.png); }
+
 .login-dialog {
   //reset
   border: none;
diff -urp gnome-shell-3.33.91.orig/js/ui/unlockDialog.js gnome-shell-3.33.91/js/ui/unlockDialog.js
--- gnome-shell-3.33.91.orig/js/ui/unlockDialog.js	2019-08-21 15:00:39.000000000 -0500
+++ gnome-shell-3.33.91/js/ui/unlockDialog.js	2019-09-04 15:24:01.072437800 -0500
@@ -20,6 +20,7 @@ var UnlockDialog = class {
                                      layout_manager: new Clutter.BoxLayout(),
                                      visible: false });
 
+        this.actor.add_style_class_name('login-dialog-sle');
         this.actor.add_constraint(new Layout.MonitorConstraint({ primary: true }));
         parentActor.add_child(this.actor);