Screenshot of Beryl running on PCLinuxOS 2007 demonstrating "Wobbly Windows".
Original uploader and author was <a href="https://en.wikipedia.org/wiki/User:Destin" class="extiw" title="en:User:Destin">Destin</a> at <a href="https://en.wikipedia.org/wiki/" class="extiw" title="w:">en.wikipedia</a>
14 April 2007 (original upload date)
Originally from <a href="https://en.wikipedia.org/wiki/" class="extiw" title="w:">en.wikipedia</a>; description page is/was <a class="external text" href="https://en.wikipedia.org/w/index.php?title=Image%3ABeryl_wobbly.png">here</a>.