In this exercise, you'll create your own pixel art maker which will allow a user to choose colors from a palette and then paint pixel art. The interface is completely up to you, but it could look something like this.
Improve the mouse so it behaves like a real paintbrush. In other words, allow the user to paint by clicking and dragging across the canvas. For this, you'll need a combination of the `mousedown`, `mouseenter`, and `mouseup` events.
Add a color picker which allows the user to select any brush color using the [`<input type="color">` tag](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input/color) and the [`change` event](https://developer.mozilla.org/en-US/docs/Web/Events/change).
- [Getting started with Surge](http://surge.sh/help/getting-started-with-surge)
- [Remembering a domain](http://surge.sh/help/remembering-a-domain)
A good domain name for this project is `USERNAME-pixel-art-maker.surge.sh` where `USERNAME` is your GitHub username in all **lowercase** letters. Once deployed and everything works as you expect, copy the URL to your site and paste it below.