点状图例
markers1 = {{[image], 0.06}, {[image], 0.06}, {[image], 0.07}, {[image], 0.07}, {[image], 0.07}};
markers2 = {{[image], 0.06}, {[image], 0.06}, {[image], 0.07}, {[image], 0.07}, {[image], 0.07}};
labels = Array[Row[{"lbl ", #1}]&, 7];
Row[{PointLegend[88, labels, LegendMarkerSize -> {15, 15}, LabelStyle -> {GrayLevel[0.3], Bold, 16}], PointLegend[68, labels, LegendMarkers -> markers1, LegendMarkerSize -> {15, 15}, LabelStyle -> {GrayLevel[0.3], Bold, 16}], PointLegend["DarkRainbow", labels, LegendMarkers -> markers2, LegendMarkerSize -> {15, 15}, LabelStyle -> {GrayLevel[0.3], Bold, 16}], PointLegend[Table[StandardGray, {7}], labels, LegendMarkerSize -> {15, 15}, LegendMarkers -> {{Automatic, 20}}, LabelStyle -> {GrayLevel[0.3], Bold, 16}]}, Spacer[10]]