Suggestion: Demo Browser Search Button

The all fancy examples/demo browser/launcher application could really
benefit from a search button.

Sometimes you know there is a demo or example, and you even remember its
name, but you can't find the appropriate category it is filed under.

So a search button that would list examples/demos that match a name
would be nice (even nicer with the option to search for a word in the
description).

Also let me suggest that the arrow up/down buttons at the end of the
selection won't win an usability award. I would make an effort to restructure the categories so that you don't
need those up/down buttons.