I've been working on a set of GroundTruth rules to do something similar, but at the moment I only have 3 classes (OSM, NAPTAN and merged). If I can find rules which work I'll extend this according to Chris's colour scheme. At the moment I have it as a transparent overlay, but my icons are too small, and its too difficult to pick them out on the display of my Garmin: so I think I'll add the road system with the minimum of fancy display.
Also my initial attempt was too ambitious the XAPI download of bus stops for the UK is now rather large! Any one interested I can post my provisional GroundTruth rules on the wiki. Jerry Clough
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