- role can optionally be set, and only as much as you provide will be
- checked to see if it matches, eg. if you set role="abc" and the window's
- role is actually "abcde" it would match.
+ the name, class, and role use simple globbing rules such as those
+ used by a shell. you can use * to match any characters and ? to match
+ any single character.
+
+ when multiple rules match a window, they will all be applied, in the
+ order that they appear in this list