User Story

As a Wikipedia editor, I want to be able to create basic area charts that can be embedded in articles so that I can enhance encyclopedic content through data visualization.

Acceptance Criteria

• It's possible to define a .chart file that accept a new parameter of "type": "area" with one or multiple series using the same parameters as "type": "line"
• "type": "area" definitions generate a basic area chart on preview (like this example).
• "type": "area" definitions can be embedded in an article to render a basic area chart.