[mkgmap-dev] Commit r3867: refactoring, no functional change: simplify code to add background polygon (type 0x4B)

Version mkgmap-r3867 was committed by gerd on Sun, 26 Mar 2017 refactoring, no functional change: simplify code to add background polygon (type 0x4B) http://www.mkgmap.org.uk/websvn/revision.php?repname=mkgmap&rev=3867