IgnoreCase property is missing for the filterable options of the column:
The option is documented in:
We have the need to create a chart to display Risk Information. Below is the image of a risk matrix as defined on pages 96 in AFPAM63-128 https://static.e-publishing.af.mil/production/1/saf_aq/publication/afpam63-128/afpam63-128.pdf -- there are more examples on page 101
Another example of a risk matrix can be seen on page 18 here -> https://static.e-publishing.af.mil/production/1/af_se/publication/afi90-802/afi90-802.pdf
I've copied the images here for convenience.
Would it be possible to add this to the Kendo Chart backlog?