In this exercise, you'll create your own pixel art maker which allows a user choose colors from a palette and then "paint" pixel art. The interface is completely up to you, but it could look something like this.
1. Expand the palette with the rest of the standard colors as well as an eraser. (i.e. red, orange, yellow, green, blue, purple, brown, gray, black, white, etc.)
Add a color picker which allows the user to select any 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).