Jon Robson, 05/12/2014 17:56:
It might be useful to try a different logo on one of the projects e.g. Japanese and see how this gets impacted by the change. If there is no drastic change we could probably conclude that indeed my comparison sucks :) We can certainly use clicks as a guideline of whether the icon is getting more effective.
I think you should probably also consider whether a click on the icon is followed by a click on a menu item, to exclude most unintentional clicks. But yes, I agree it would be very interesting to try out some alternatives and see those numbers.
Nemo