From http://www.jwz.org/xscreensaver/xscreensaver-5.35.tar.gz

[xscreensaver] / hacks / config / cube21.xml

diff --git a/hacks/config/cube21.xml b/hacks/config/cube21.xml
index b8351c7dc0f13ccaaebaf53a2acd0330233c559d..f16d7fdcf338bc7f765b57d4f41b0d1a7f0c7e08 100644 (file)
--- a/hacks/config/cube21.xml
+++ b/hacks/config/cube21.xml
@@ -4,6 +4,8 @@
 
   <command arg="-root"/>
 
+  <video href="https://www.youtube.com/watch?v=AFtxL6--lTQ"/>
+
   <hgroup>
    <vgroup>
 
@@ -64,11 +66,11 @@
   <xscreensaver-updater />
 
   <_description>
-Animates a Rubik-like puzzle known as Cube 21 or Square-1.
+The "Cube 21" Rubik-like puzzle, also known as "Square-1".
 The rotations are chosen randomly.  See also the "Rubik",
 "RubikBlocks" and "GLSnake" screen savers.
 
-http://en.wikipedia.org/wiki/Square_One_%28puzzle%29
+https://en.wikipedia.org/wiki/Square_One_%28puzzle%29
 
 Written by Vasek Potocek; 2005.
   </_description>