Hey! I decided to make an icon that I felt was more stylistically inline with the Yosemite look. I just made the one icon, though I considered doing a whole set to replace “processing.icns” in the resources folder. Anyway, here’s what it looks like:
Anyone is welcome to use it if they like it. I’ve attached the .png to this post. After you download it, just copy the image; right click “Arduino.app;” click “Get Info;” at the top right of the Get Info screen, you’ll see the current icon; click it and hit Command+V to paste.