for an OM
Atlist is the easy way to create maps with multiple markers.
[{"featureType":"administrative","elementType":"geometry","stylers":[{"visibility":"on"}]},{"featureType":"transit.line","elementType":"geometry","stylers":[{"hue":"#ff0000"}]},{"featureType":"water","elementType":"geometry.fill","stylers":[{"color":"#ffd300"}]}]