- Improve the existing documentation. In particular add more images and
  style the webpage a bit.
- Continue porting the old documentation to the gtk_paradise project.
  Once complete, remove the entry ^^^ here.
- Continue porting the old ruby-gtk-examples as well.
- Find more CSS examples and more examples in general. These latter
  examples must be added into examples/css/ and document something
  "visually" (aka they have to work, and ideally should be small,
  when this is possible).
- Port more zenity-options + examples + documentation + images.
