Hi, I've observed a similar behaviour in BaseCamp. I don't know why the parameter '--transparent' does not what it is expected to do, but the background with type '0x4b' is always shown in BaseCamp regardless if the parameter is set or not. Is this caused due to BaseCamp behaviour or due to a possible bug in mkgmap? Is one of these parameters I use at least the reason for creating the background (multi)polygon? ... --add-pois-to-lines --add-pois-to-areas --pois-to-areas-placement --link-pois-to-ways --adjust-turn-headings=1 --process-exits --merge-lines --remove-short-arcs --reduce-point-density --reduce-point-density-polygon --min-size-polygon --draw-priority=10 --index --route --tdbfile ... A workaround is to add a transparent bitmap with type '0x4b' to the '.typ' file and delete the corresponding entry in the '[_drawOrder]' section. Is there already an answer / a solution to the previous post from Thorsten? Thank you. -- View this message in context: http://gis.19327.n5.nabble.com/locator-rules-and-transparent-maps-tp5740571p... Sent from the Mkgmap Development mailing list archive at Nabble.com.