How to change that icon

THIS IS HOW TO CHANGE THE ICON
(no hack necessary) :
when the app shows up in the dock, command click it
then click on it in Finder.
press file>get info
on the top left corner you will see that ugly green icon
(from google, or your own files, copy the new image that will become your new Time Out icon)
then, go back to the get info window in Finder
press on the icon on the top left and press edit>paste
From now on, your dock will never show that ugly icon again!!!
Hope this helps!!

Who, Me? Yes, You! about Time Out - Break Reminders, v1.6.3