[ATK](https://developer.gnome.org/atk/stable/AtkObject.html#AtkRole) has `ATK_ROLE_SUBSCRIPT` and `ATK_ROLE_SUPERSCRIPT`. These should be used for the `sub` and `sup` elements respectively. BTW: This mapping was implemented a while ago in WebKitGtk. If it's not implemented in Gecko yet, it should be.
ATK has
ATK_ROLE_SUBSCRIPTandATK_ROLE_SUPERSCRIPT. These should be used for thesubandsupelements respectively.BTW: This mapping was implemented a while ago in WebKitGtk. If it's not implemented in Gecko yet, it should be.