Using variables to change the opacity of items Design Downloaded from: https://www.sketchappsources.com/free-source/2567-chandelier-lighting-illustration-sketch-freebie-resource.html

change the background color using variables and container states

Setting up a calendar event using Proto.io Templates and Variables

Popup message on iPhone simulation Message appears in 2 seconds after screen loads / swipe left to dismiss / tap message app to run again

Track your daily calories with your camera, get recommended based on your gender, interactive UI!