Facebook Develops A Photoshop For Interaction Design, And It’s Free For Anyone To UseTo design the groundbreaking app Paper, Facebook built an in-house IxD tool first. And then the company shared it with the world for free. Editor’s Note 2/17/14 Happy Presidents’ Day! To celebrate, we’re revisiting some of our most popular stories of the year. Enjoy. We’ve already waxed poetically about Facebook’s new app Paper, which reskins the bloated Facebook experience to feel like a top-tier
