If you didn't know, the Google Hangouts chat feature that's built into your Gmail lets you draw pictures while chatting with friends. Give it a whirl, and you might find you can sketch a simple flower, maybe a stick person or two.
Amazing, right? (Check out an animated version to see the evolution of this drawing here.) Curious to know how he did it, I asked for a blow-by-blow. Corinella was willing to share his secrets -- and a new illustration -- with The Huffington Post.