I recently was browsing through the list of default keyboard shortcuts for Visual Studio 2013 and came across a combination of keys which allows you to easily zoom in and out in the code editor. These are Ctrl+Shift+. to zoom in and Ctrl+Shift+, to zoom out. I tried them out quickly and noticed that only the combination for zooming in was working. I first thought that it was an issue with the layout of the International keyboard on the Macbook Pro (it has a few quirks), but then realised that it was probably Resharper which has taken over that specific keyboad combination.