[Admins]

There was once support for setting the hardware cursor with setcursor("mycursor.cur") or so, but that wasn't platform compatible and wasn't supporting custom cursors, so it's not supported anymore.
Starting with v3 it's also possible to display a software cursor, but it's looking quite laggy that's why it's turned off except when there is no hardware cursor or when you are capturing a video and use the option 'show mouse while recording'.

It might be possible now to add support for customizable hardware cursors since Graal can now generate icons and cursors on the fly from normal pngs/gifs/whatever (added for making it possible to customize window icons).