ICCCM states a window can have multiple types, which we didn't handle.
Fixing this also includes a slight change to the dbus interface, I hope
that doesn't break too many people.
Also this is pretty unfixable for `wintypes`, and we are moving to
universal rules anyway, so I didn't bother.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
When implementing animation, which also replaced the old fading code,
the per-window fading option was accidentally broken.
This commit brings it back.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
From the user's perspective they are just random, meaningless numbers.
Doesn't really make sense to write rule against them.
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
