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.

An on-boarding carousel concept, created using Proto.io. It is implemented using state animations. Feel free to import into your Proto.io account.

Done to explore setting colors with sliders and some Math expressions. Additional features, should anyone wish to build, would be to convert to HSV space, and to produce Hex color codes as well. To use colors, in the color controls of an element, replace the #XXXXXX hex code with this: rgb(255,125,45). Two swatches are provided, since color combinations are more interesting than single colors. Swatches are draggable.

Prototype created for an online web-based app, allowing farmers to evaluate their fields yield. Because the app will primary be used in the fields, outdoor, the final design included optimization of the colors to insure the best readability.