Create Hexagon Graticule Layer
geoc vector graticule hexagon -g -180,-90,180,90 -l 10 -o hexagons.shp
geoc map draw -f vector_graticule_hexagon.png -b "-180,-90,180,90" \
-l "layertype=layer file=naturalearth.gpkg layername=ocean style=ocean.sld" \
-l "layertype=layer file=naturalearth.gpkg layername=countries style=countries.sld" \
-l "layertype=layer file=hexagons.shp style='stroke=#ab9b7d stroke-width=0.5 fill=#f5deb3 fill-opacity=0.15'"
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