Add pattern options to bar and line charts to improve accessibility

It would be great if Redash had options to add patterns to the bar and line chart visualizations.

Currently they are inaccessible to customers with visual impairments. I realize that labels can be added, but having the patterns would be a useful feature that all customers could benefit from. This feature could be added next to the color options.

Screen Shot 2021-06-16 at 11.19.37 AM
Image: Example of a line chart with dashed and dotted lines.


Image: Example of bar chart with dotted and lined bars (not the best example but you get the idea).

Here are some additional resources which are the sources of the above screenshots:

Thank you for looking into this type of accessibility improvement!

Related post: Add dash line in line chart