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center: [41.4583, 12.7059],
zoom: 5,
},
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options: {
attribution: 'Map data: © <a href="http://www.openstreetmap.org/copyright">OpenStreetMap</a>, <a href="http://viewfinderpanoramas.org">SRTM</a> | Map style: © <a href="https://opentopomap.org">OpenTopoMap</a> (<a href="https://creativecommons.org/licenses/by-sa/3.0/">CC-BY-SA</a>)',
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url: 'http://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer/tile/{z}/{y}/{x}',
options: {
attribution: '© <a href="http://www.esri.com/">Esri</a>',
maxZoom: 18,
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var controlOverlayOpacity = new L.Control.OpacitySlider(overlay, opts.opacityOverlayControl.options);
controlBaseOpacity.addTo(map);
controlOverlayOpacity.addTo(map);
layer.addTo(map);
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