You posted a followup bump literally 9 minutes after your first post. We aren't sitting around here all day and night answering everyone's questions instantly.
What you have sounds like a graphics issue. This is what you linked to:
I'm no photoshop expert so I can't tell you how. I'm sure you can find tutorials online that will teach how how to make this in photoshop.
As for implementation, since you're using CocoonJS, I assume you're releasing for mobile. I'm not sure about Android, but I don't of a single iOS app that has a 'quit' button.