Hi Gerd What a great tool ! Perhaps some suggestions. I keep various styles and --check-styles lists all the errors for each style. a) perhaps list the name of the style first then the possible errors? b) separate each style error list using an extra carriage return? c) perhaps enable checking on one style only using style=mystyle --check-styles? Another query: One of the errors concerns polygons : Warning: invalid type 0x3D00 for POLYGON in style file polygons, line 75 line 175 : landuse=pond [0x3D00 resolution 24] This polygon might be invalid using mkgmap but Garmin uses the 0x3000 to 0x3FFF+ for different water features. As I said, brilliant work! ..Nick -- View this message in context: http://gis.19327.n5.nabble.com/check-styles-tp5758614.html Sent from the Mkgmap Development mailing list archive at Nabble.com.