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.
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:
- Accessible Color Use and Color Contrast – IT Accessibility
- Accessibility at Penn State | Charts & Accessibility
Thank you for looking into this type of accessibility improvement!
Related post: Add dash line in line chart