# Christmas Lights

**Tier:** 1-Beginner

The ChristmasLights application relies on your development talents to create
a mesmerizing light display. Your task is to draw seven colored circles
in a row and based on a timer change the intensity of each each circle. When
a circle is brightened it's predecessor returns to its normal intensity.

This simulates the effect of a string of rippling lights, similar to the ones
displayed during the Christmas Holidays.

## User Stories

-   [ ] User can press a button to start and stop the display
-   [ ] User can change the interval of time controlling the change in intensity

## Bonus features

-   [ ] User can select the color used to fill each circle
-   [ ] User can specify the intensity value
-   [ ] User can change the size of any circle in the row
-   [ ] User can specify the number of rows to be included in the display. From
        one to seven rows can be chosen

## Useful links and resources

-   [Sample Image](https://previews.123rf.com/images/whiterabbit/whiterabbit1003/whiterabbit100300020/6582600-seven-color-balls-red-orange-yellow-green-cyan-blue-and-magenta-in-a-row-on-a-white-background.jpg)
-   [Adafruit LED Matrix](https://cdn-shop.adafruit.com/970x728/1487-02.jpg)

## Example projects

[PureCSSChristmasLights](https://codepen.io/tobyj/pen/QjvEex)