https://controlsfx.github.io/javadoc/11.1.2/org.controlsfx.controls/impl/org/controlsfx/tableview2/RowHeader.html
RowHeader (ControlsFX Project 11.1.2)
project
https://a11ysupport.io/tech/aria/rowheader_role
rowheader_role (aria) | Accessibility Support
roleariaaccessibilitysupport