display circle for custom build dist values, display nothing if no limit. map borders are not taken into account at this point
file(GLOB FortSprites *L.png *R.png)
list(REMOVE_ITEM FortSprites *@2x.png)
list(REMOVE_ITEM FortSprites *-icon.png)
install(FILES
${FortSprites}
DESTINATION ${SHAREPATH}Data/Forts)