File sle-classic-lock-screen-background.patch of Package gnome-shell-extensions
Index: gnome-shell-extensions-3.33.91/data/gnome-shell-sass/_common.scss
===================================================================
--- gnome-shell-extensions-3.33.91.orig/data/gnome-shell-sass/_common.scss
+++ gnome-shell-extensions-3.33.91/data/gnome-shell-sass/_common.scss
@@ -1916,6 +1916,7 @@ StScrollBar {
//reset
border: none;
background-color: transparent;
+ background: #2e3436 url(sle-background.png);
$_gdm_fg: #f6f5f4;
$_gdm_bg: lighten(#2e3436, 19%);