Lantern

Charts nobody can read

A chart is a picture of a table. If you cannot see the picture, you should still be able to get the table. Lantern renders both from the same data, so nobody has to keep them in step.

What is in the box

Twelve chart types, arrow-key navigation between points, a spoken summary that says what the trend is, and a contrast check that fails your build if a series colour is too pale.

Testing with real people

Before 1.0 I sat with three screen-reader users for an afternoon each. Their feedback changed the summary text, the focus order and the default colours. It is the only part of the project I would repeat exactly.