Hey bobah, I noticed something that is really interesting to implement: when you place a icon on a stack, you don't see the indicator of the app is running anymore. I think that would be nice if I can still see if the app is running or not.
Other thing (that might be not liked by everybody) is to show on the stack at panel that there are apps runing. I mean, on stack icon, show something that let user know that there is an app placed inside it that's running.
For now, thats all