Lets babies mix and match and make all kinds of silly halloween characters. Images from: https://www.comofazeremcasa.net/brinquedo-com-blocos-de-madeira-para-criancas-com-moldes/

Form validation using variables and states

A quick demonstration of the header switch on the new Swarm App. I've used variables to store the switch state.

A simple implementation of Pull to Refresh