Here's a demo showing a basic color picker using a container with 4 states for both the colored star and the color swatches.

This prototype shows a subtle animation of avatars flying in, and subtle background tint changes. See how it was created step-by-step: http://docs.proto.io/videos/prototyping-subtle-animation/ >starting at time: 28:40 Enjoy...

A data visualization where a bar chart of faces flies out showing the details of individual faces.

If you need to get the Y position of a vertically scrolling container, create a text box. Then on the container scroll trigger, set a variable that evaluates the numerical callback value from the event (Y position). Then add a callback that changes the text property of the text box by reading from the variable.

Here's the previous version of Carousel's on boarding sequence

A simple game prototype. It actually works! Have fun :)