“I just wanted to make something beautiful.” — Jiro Horikoshi
If you’ve seen The Wind Rises—and trust me, you should— you would’ve seen the slider unit-conversion rulers and blueprints used by the aeronautical engineers throughout the film. Tried to recreate it here, and also adopt the style of OS X Yosemite.
The plane in the blueprint is an actual prototype sketch of the Mitsubishi A6M “Zero”.
So download the .icns file, replace it with Xcode’s, and like Jiro, build your dream!
UPDATE: here’s how it looks in OS X Yosemite.