exiting spotify

Is it possible to set spotify.client to actually EXIT when i click the red X? As it is now, it just minimizes to taskbar, but keeps playing. I either have to click "file/exit" or rightclick the icon an choose exit. I understand that a lot of people like it to just minimize, but I'm sure there's allso a lot of people who want it like me. So if there's not a setting for it yet, how about fixing that for the next update?