XtraScreenHacks is a collection of display modes that are based on and intended
to be run with the XScreensaver distribution. Requires Xlib and OpenGL.

Included screensavers:
* Skylark, the classic 1950s kitchen table top
* Soma, the 3d cube puzzle
* Berlin-Uhr, the Berlin Quantity Didactics Clock
* Flyer
* Daisy
* Twinkle
* HH-Tree

For these screensavers to work, you will need to add entries to your
$HOME/.xscreensaver file by hand. Add the following lines:
- daisy -root \n\
- twinkle -root \n\
- GL: flyer -root \n\
- GL: "Berlin-Uhr" berlinuhr -root \n\
- GL: soma -root \n\
- GL: skylark -root \n\
- GL: craters -root \n\
- GL: psychedelic -root \n\
- GL: "HH-Tree" hhtree -root \n\