I need to configure my Navit. My problem is, that the blue line you have to follow is too thick if you want to use Navit in a warehouse or on some parking lots.

I mean the blue line, as you can see here: http://wiki.navit-project.org/images/2/21/Navit-internal-osd-fon.png

So which line I have to change in the xml-file to manipulate the width of the tracking line.