At the end of this chapter, I would like to propose a small exercise. The Pomodoro timer that we built earlier in the chapters is, without any doubt, great, but it still lacks some nice features. A really nice thing that it could provide would be showing random kittens from http://thecatapi.com/ during resting time. Can you implement this? Of course you can! But please do not confuse resting with working time! I am almost sure that your project manager will not like it much if you stare at kittens instead of working.
The solution to this exercise can be found in Appendix, Solutions to Exercises.