I've spent a part of the weekend working on a redesign of a mail client I am now using for 2 years: Sparrow.
I know this app will never be updated anymore but as a designer, I have a big respect for @Jean-Marc Denis and the work he accomplished with his team. I decided to highlight some possible improvements on the current app to pay tribute to this project and its authors.
I hope you'll find both the fullview and the little case study interesting. Your feedbacks are always appreciated.
Have a nice week ;)