How were those animations made on the atom site?


#1

Just discovered atom today, looks really good!

Quick unrelated support question: Anyone know how are those animations on the atom homepage (https://atom.io/) are made? The smoothness makes me doubt its done in Photoshop maybe AfterEffects or something else?
eg - https://atom.io/assets/packages-9357aa86fc75f4357af1f68593d9e001.gif