diff --git a/src/main/java/org/gcube/portlets/admin/accountingmanager/client/filters/ActiveFiltersPanel.java b/src/main/java/org/gcube/portlets/admin/accountingmanager/client/filters/ActiveFiltersPanel.java
index b650d39..c9d678e 100644
--- a/src/main/java/org/gcube/portlets/admin/accountingmanager/client/filters/ActiveFiltersPanel.java
+++ b/src/main/java/org/gcube/portlets/admin/accountingmanager/client/filters/ActiveFiltersPanel.java
@@ -536,7 +536,7 @@ public class ActiveFiltersPanel extends SimpleContainer {
 		vlc.add(gridFilter, new VerticalLayoutData(1, 1, new Margins(0)));
 
 		FieldSet fieldSet = new FieldSet();
-		fieldSet.setHeight("480px");
+		fieldSet.setHeight("450px");
 		fieldSet.setHeadingHtml("<b>Active Filters</b>");
 		fieldSet.setCollapsible(false);
 		fieldSet.add(vlc);
diff --git a/src/main/java/org/gcube/portlets/admin/accountingmanager/client/maindata/charts/job/JobChartTopPanel.java b/src/main/java/org/gcube/portlets/admin/accountingmanager/client/maindata/charts/job/JobChartTopPanel.java
index e57f8b0..184cc46 100644
--- a/src/main/java/org/gcube/portlets/admin/accountingmanager/client/maindata/charts/job/JobChartTopPanel.java
+++ b/src/main/java/org/gcube/portlets/admin/accountingmanager/client/maindata/charts/job/JobChartTopPanel.java
@@ -6,6 +6,7 @@ import java.util.Date;
 import org.gcube.portlets.admin.accountingmanager.client.event.ExportRequestEvent;
 import org.gcube.portlets.admin.accountingmanager.client.maindata.charts.utils.ChartDateTimeData;
 import org.gcube.portlets.admin.accountingmanager.client.maindata.charts.utils.ChartTimeMeasure;
+import org.gcube.portlets.admin.accountingmanager.client.maindata.charts.utils.ColorsPalette;
 import org.gcube.portlets.admin.accountingmanager.client.maindata.charts.utils.DownloadConstants;
 import org.gcube.portlets.admin.accountingmanager.client.maindata.charts.utils.JobChartMeasure;
 import org.gcube.portlets.admin.accountingmanager.client.maindata.charts.utils.TimeUnitMeasure;
@@ -472,7 +473,11 @@ public class JobChartTopPanel extends SimpleContainer {
 		 * );
 		 */
 
+		ColorsPalette colorsPalette=new ColorsPalette();
 		ArrayString colors = options.colors();
+		colors=colorsPalette.getColorsPalette(colors);
+		options.colors(colors);
+		
 		// colors.setValue(0, "#cc0038");
 		// colors.setValue(1, "#32cd32");
 
@@ -949,43 +954,43 @@ public class JobChartTopPanel extends SimpleContainer {
 		case Duration:
 			return "[{" + " \"id\": \"" + JobChartMeasure.Duration.name() + "\"," + " \"labels\": {"
 					+ "    \"format\": \"{value} " + unitMeasureLabel + "\"," + "    \"style\": {"
-					+ "       \"color\": \"" + colors.get(1) + "\"" + "     }" + " }," + " \"stackLabels\": {"
+					+ "       \"color\": \"#434348\"" + "     }" + " }," + " \"stackLabels\": {"
 					+ " \"enabled\": \"true\"," + " \"style\": {" + "     \"fontWeight\": \"bold\","
 					+ "    \"color\": \"gray\"" + "   } " + "   }," + " \"title\": { " + "    \"text\": \""
-					+ JobChartMeasure.Duration.getLabel() + "\"," + "    \"style\": {" + "       \"color\": \""
-					+ colors.get(1) + "\"" + "    }" + " }" + "}]";
+					+ JobChartMeasure.Duration.getLabel() + "\"," + "    \"style\": {" + "       \"color\": \"#434348\""
+					+ "    }" + " }" + "}]";
 		case MaxInvocationTime:
 			return "[{" + " \"id\": \"" + JobChartMeasure.MaxInvocationTime.name() + "\"," + " \"labels\": {"
 					+ "    \"format\": \"{value} " + unitMeasureLabel + "\"," + "    \"style\": {"
-					+ "       \"color\": \"" + colors.get(1) + "\"" + "     }" + " }," + " \"stackLabels\": {"
+					+ "       \"color\": \"#434348\"" + "     }" + " }," + " \"stackLabels\": {"
 					+ " \"enabled\": \"true\"," + " \"style\": {" + "     \"fontWeight\": \"bold\","
 					+ "    \"color\": \"gray\"" + "   } " + "   }," + " \"title\": { " + "    \"text\": \""
-					+ JobChartMeasure.MaxInvocationTime.getLabel() + "\"," + "    \"style\": {" + "       \"color\": \""
-					+ colors.get(1) + "\"" + "    }" + " }" + "}]";
+					+ JobChartMeasure.MaxInvocationTime.getLabel() + "\"," + "    \"style\": {" + "       \"color\": \"#434348\""
+					+ "    }" + " }" + "}]";
 		case MinInvocationTime:
 			return "[{" + " \"id\": \"" + JobChartMeasure.MinInvocationTime.name() + "\"," + " \"labels\": {"
 					+ "    \"format\": \"{value} " + unitMeasureLabel + "\"," + "    \"style\": {"
-					+ "       \"color\": \"" + colors.get(1) + "\"" + "     }" + " }," + " \"stackLabels\": {"
+					+ "       \"color\": \"#434348\"" + "     }" + " }," + " \"stackLabels\": {"
 					+ " \"enabled\": \"true\"," + " \"style\": {" + "     \"fontWeight\": \"bold\","
 					+ "    \"color\": \"gray\"" + "   } " + "   }," + " \"title\": { " + "    \"text\": \""
-					+ JobChartMeasure.MinInvocationTime.getLabel() + "\"," + "    \"style\": {" + "       \"color\": \""
-					+ colors.get(1) + "\"" + "    }" + " }" + "}]";
+					+ JobChartMeasure.MinInvocationTime.getLabel() + "\"," + "    \"style\": {" + "       \"color\": \"#434348\""
+					+ "    }" + " }" + "}]";
 		case OperationCount:
 			return "[{" + " \"id\": \"" + JobChartMeasure.OperationCount.name() + "\"," + " \"labels\": { "
-					+ "    \"format\": \"{value}\"," + "    \"style\": { " + "      \"color\": \"" + colors.get(1)
-					+ "\"" + "    }" + " }," + " \"stackLabels\": {" + " \"enabled\": \"true\"," + " \"style\": {"
+					+ "    \"format\": \"{value}\"," + "    \"style\": { " + "      \"color\": \"#434348\""
+					+ "    }" + " }," + " \"stackLabels\": {" + " \"enabled\": \"true\"," + " \"style\": {"
 					+ "     \"fontWeight\": \"bold\"," + "    \"color\": \"gray\"" + "   } " + "   },"
 					+ " \"title\": { " + "    \"text\": \"" + JobChartMeasure.OperationCount.getLabel() + "\","
-					+ "    \"style\": {" + "       \"color\": \"" + colors.get(1) + "\"" + "    }" + " }" + "}]";
+					+ "    \"style\": {" + "       \"color\": \"#434348\"" + "    }" + " }" + "}]";
 
 		default:
 			return "[{" + " \"id\": \"" + JobChartMeasure.Duration.name() + "\"," + " \"labels\": {"
 					+ "    \"format\": \"{value} " + unitMeasureLabel + "\"," + "    \"style\": {"
-					+ "       \"color\": \"" + colors.get(1) + "\"" + "     }" + " }," + " \"stackLabels\": {"
+					+ "       \"color\": \"#434348\"" + "     }" + " }," + " \"stackLabels\": {"
 					+ " \"enabled\": \"true\"," + " \"style\": {" + "     \"fontWeight\": \"bold\","
 					+ "    \"color\": \"gray\"" + "   } " + "   }," + " \"title\": { " + "    \"text\": \""
-					+ JobChartMeasure.Duration.getLabel() + "\"," + "    \"style\": {" + "       \"color\": \""
-					+ colors.get(1) + "\"" + "    }" + " }" + "}]";
+					+ JobChartMeasure.Duration.getLabel() + "\"," + "    \"style\": {" + "       \"color\": \"#434348\""
+					+ "    }" + " }" + "}]";
 
 		}
 
diff --git a/src/main/java/org/gcube/portlets/admin/accountingmanager/client/maindata/charts/service/ServiceChartTopPanel.java b/src/main/java/org/gcube/portlets/admin/accountingmanager/client/maindata/charts/service/ServiceChartTopPanel.java
index 3aa7a6b..d138c1f 100644
--- a/src/main/java/org/gcube/portlets/admin/accountingmanager/client/maindata/charts/service/ServiceChartTopPanel.java
+++ b/src/main/java/org/gcube/portlets/admin/accountingmanager/client/maindata/charts/service/ServiceChartTopPanel.java
@@ -6,6 +6,7 @@ import java.util.Date;
 import org.gcube.portlets.admin.accountingmanager.client.event.ExportRequestEvent;
 import org.gcube.portlets.admin.accountingmanager.client.maindata.charts.utils.ChartDateTimeData;
 import org.gcube.portlets.admin.accountingmanager.client.maindata.charts.utils.ChartTimeMeasure;
+import org.gcube.portlets.admin.accountingmanager.client.maindata.charts.utils.ColorsPalette;
 import org.gcube.portlets.admin.accountingmanager.client.maindata.charts.utils.DownloadConstants;
 import org.gcube.portlets.admin.accountingmanager.client.maindata.charts.utils.ServiceChartMeasure;
 import org.gcube.portlets.admin.accountingmanager.client.maindata.charts.utils.TimeUnitMeasure;
@@ -472,7 +473,11 @@ public class ServiceChartTopPanel extends SimpleContainer {
 		 * );
 		 */
 
+		ColorsPalette colorsPalette = new ColorsPalette();
 		ArrayString colors = options.colors();
+		colors = colorsPalette.getColorsPalette(colors);
+		options.colors(colors);
+
 		// colors.setValue(0, "#cc0038");
 		// colors.setValue(1, "#32cd32");
 
@@ -1035,43 +1040,43 @@ public class ServiceChartTopPanel extends SimpleContainer {
 		case Duration:
 			return "[{" + " \"id\": \"" + ServiceChartMeasure.Duration.name() + "\"," + " \"labels\": {"
 					+ "    \"format\": \"{value} " + unitMeasureLabel + "\"," + "    \"style\": {"
-					+ "       \"color\": \"" + colors.get(1) + "\"" + "     }" + " }," + " \"stackLabels\": {"
+					+ "       \"color\": \"#434348\"" + "     }" + " }," + " \"stackLabels\": {"
 					+ " \"enabled\": \"true\"," + " \"style\": {" + "     \"fontWeight\": \"bold\","
 					+ "    \"color\": \"gray\"" + "   } " + "   }," + " \"title\": { " + "    \"text\": \""
-					+ ServiceChartMeasure.Duration.getLabel() + "\"," + "    \"style\": {" + "       \"color\": \""
-					+ colors.get(1) + "\"" + "    }" + " }" + "}]";
+					+ ServiceChartMeasure.Duration.getLabel() + "\"," + "    \"style\": {"
+					+ "       \"color\": \"#434348\"" + "    }" + " }" + "}]";
 		case MaxInvocationTime:
 			return "[{" + " \"id\": \"" + ServiceChartMeasure.MaxInvocationTime.name() + "\"," + " \"labels\": {"
 					+ "    \"format\": \"{value} " + unitMeasureLabel + "\"," + "    \"style\": {"
-					+ "       \"color\": \"" + colors.get(1) + "\"" + "     }" + " }," + " \"stackLabels\": {"
+					+ "       \"color\": \"#434348\"" + "     }" + " }," + " \"stackLabels\": {"
 					+ " \"enabled\": \"true\"," + " \"style\": {" + "     \"fontWeight\": \"bold\","
 					+ "    \"color\": \"gray\"" + "   } " + "   }," + " \"title\": { " + "    \"text\": \""
 					+ ServiceChartMeasure.MaxInvocationTime.getLabel() + "\"," + "    \"style\": {"
-					+ "       \"color\": \"" + colors.get(1) + "\"" + "    }" + " }" + "}]";
+					+ "       \"color\": \"#434348\"" + "    }" + " }" + "}]";
 		case MinInvocationTime:
 			return "[{" + " \"id\": \"" + ServiceChartMeasure.MinInvocationTime.name() + "\"," + " \"labels\": {"
 					+ "    \"format\": \"{value} " + unitMeasureLabel + "\"," + "    \"style\": {"
-					+ "       \"color\": \"" + colors.get(1) + "\"" + "     }" + " }," + " \"stackLabels\": {"
+					+ "       \"color\": \"#434348\"" + "     }" + " }," + " \"stackLabels\": {"
 					+ " \"enabled\": \"true\"," + " \"style\": {" + "     \"fontWeight\": \"bold\","
 					+ "    \"color\": \"gray\"" + "   } " + "   }," + " \"title\": { " + "    \"text\": \""
 					+ ServiceChartMeasure.MinInvocationTime.getLabel() + "\"," + "    \"style\": {"
-					+ "       \"color\": \"" + colors.get(1) + "\"" + "    }" + " }" + "}]";
+					+ "       \"color\": \"#434348\"" + "    }" + " }" + "}]";
 		case OperationCount:
 			return "[{" + " \"id\": \"" + ServiceChartMeasure.OperationCount.name() + "\"," + " \"labels\": { "
-					+ "    \"format\": \"{value}\"," + "    \"style\": { " + "      \"color\": \"" + colors.get(1)
-					+ "\"" + "    }" + " }," + " \"stackLabels\": {" + " \"enabled\": \"true\"," + " \"style\": {"
+					+ "    \"format\": \"{value}\"," + "    \"style\": { " + "      \"color\": \"#434348\"" + "    }"
+					+ " }," + " \"stackLabels\": {" + " \"enabled\": \"true\"," + " \"style\": {"
 					+ "     \"fontWeight\": \"bold\"," + "    \"color\": \"gray\"" + "   } " + "   },"
 					+ " \"title\": { " + "    \"text\": \"" + ServiceChartMeasure.OperationCount.getLabel() + "\","
-					+ "    \"style\": {" + "       \"color\": \"" + colors.get(1) + "\"" + "    }" + " }" + "}]";
+					+ "    \"style\": {" + "       \"color\": \"#434348\"" + "    }" + " }" + "}]";
 
 		default:
 			return "[{" + " \"id\": \"" + ServiceChartMeasure.Duration.name() + "\"," + " \"labels\": {"
 					+ "    \"format\": \"{value} " + unitMeasureLabel + "\"," + "    \"style\": {"
-					+ "       \"color\": \"" + colors.get(1) + "\"" + "     }" + " }," + " \"stackLabels\": {"
+					+ "       \"color\": \"#434348\"" + "     }" + " }," + " \"stackLabels\": {"
 					+ " \"enabled\": \"true\"," + " \"style\": {" + "     \"fontWeight\": \"bold\","
 					+ "    \"color\": \"gray\"" + "   } " + "   }," + " \"title\": { " + "    \"text\": \""
-					+ ServiceChartMeasure.Duration.getLabel() + "\"," + "    \"style\": {" + "       \"color\": \""
-					+ colors.get(1) + "\"" + "    }" + " }" + "}]";
+					+ ServiceChartMeasure.Duration.getLabel() + "\"," + "    \"style\": {"
+					+ "       \"color\": \"#434348\"" + "    }" + " }" + "}]";
 
 		}
 
diff --git a/src/main/java/org/gcube/portlets/admin/accountingmanager/client/maindata/charts/storage/StorageChartTopPanel.java b/src/main/java/org/gcube/portlets/admin/accountingmanager/client/maindata/charts/storage/StorageChartTopPanel.java
index e07cedf..0185f7e 100644
--- a/src/main/java/org/gcube/portlets/admin/accountingmanager/client/maindata/charts/storage/StorageChartTopPanel.java
+++ b/src/main/java/org/gcube/portlets/admin/accountingmanager/client/maindata/charts/storage/StorageChartTopPanel.java
@@ -7,6 +7,7 @@ import org.gcube.portlets.admin.accountingmanager.client.event.ExportRequestEven
 import org.gcube.portlets.admin.accountingmanager.client.maindata.charts.utils.ByteUnitMeasure;
 import org.gcube.portlets.admin.accountingmanager.client.maindata.charts.utils.ChartDateTimeData;
 import org.gcube.portlets.admin.accountingmanager.client.maindata.charts.utils.ChartTimeMeasure;
+import org.gcube.portlets.admin.accountingmanager.client.maindata.charts.utils.ColorsPalette;
 import org.gcube.portlets.admin.accountingmanager.client.maindata.charts.utils.DownloadConstants;
 import org.gcube.portlets.admin.accountingmanager.client.maindata.charts.utils.StorageChartMeasure;
 import org.gcube.portlets.admin.accountingmanager.client.resource.AccountingManagerResources;
@@ -451,7 +452,11 @@ public class StorageChartTopPanel extends SimpleContainer {
 		 * );
 		 */
 
+		ColorsPalette colorsPalette = new ColorsPalette();
 		ArrayString colors = options.colors();
+		colors = colorsPalette.getColorsPalette(colors);
+		options.colors(colors);
+
 		// colors.setValue(0, "#cc0038");
 		// colors.setValue(1, "#32cd32");
 
@@ -878,28 +883,28 @@ public class StorageChartTopPanel extends SimpleContainer {
 		case DataVolume:
 			return "[{" + " \"id\": \"" + StorageChartMeasure.DataVolume.name() + "\"," + " \"labels\": {"
 					+ "    \"format\": \"{value} " + unitMeasureLabel + "\"," + "    \"style\": {"
-					+ "       \"color\": \"" + colors.get(1) + "\"" + "     }" + " }," + " \"stackLabels\": {"
+					+ "       \"color\": \"#434348\"" + "     }" + " }," + " \"stackLabels\": {"
 					+ " \"enabled\": \"true\"," + " \"style\": {" + "     \"fontWeight\": \"bold\","
 					+ "    \"color\": \"gray\"" + "   } " + "   }," + " \"title\": { " + "    \"text\": \""
-					+ StorageChartMeasure.DataVolume.getLabel() + "\"," + "    \"style\": {" + "       \"color\": \""
-					+ colors.get(1) + "\"" + "    }" + " }" + "}]";
+					+ StorageChartMeasure.DataVolume.getLabel() + "\"," + "    \"style\": {"
+					+ "       \"color\": \"#434348\"" + "    }" + " }" + "}]";
 
 		case OperationCount:
 			return "[{" + " \"id\": \"" + StorageChartMeasure.OperationCount.name() + "\"," + " \"labels\": { "
-					+ "    \"format\": \"{value}\"," + "    \"style\": { " + "      \"color\": \"" + colors.get(1)
-					+ "\"" + "    }" + " }," + " \"stackLabels\": {" + " \"enabled\": \"true\"," + " \"style\": {"
+					+ "    \"format\": \"{value}\"," + "    \"style\": { " + "      \"color\": \"#434348\"" + "    }"
+					+ " }," + " \"stackLabels\": {" + " \"enabled\": \"true\"," + " \"style\": {"
 					+ "     \"fontWeight\": \"bold\"," + "    \"color\": \"gray\"" + "   } " + "   },"
 					+ " \"title\": { " + "    \"text\": \"" + StorageChartMeasure.OperationCount.getLabel() + "\","
-					+ "    \"style\": {" + "       \"color\": \"" + colors.get(1) + "\"" + "    }" + " }" + "}]";
+					+ "    \"style\": {" + "       \"color\": \"#434348\"" + "    }" + " }" + "}]";
 
 		default:
 			return "[{" + " \"id\": \"" + StorageChartMeasure.DataVolume.name() + "\"," + " \"labels\": {"
 					+ "    \"format\": \"{value} " + unitMeasureLabel + "\"," + "    \"style\": {"
-					+ "       \"color\": \"" + colors.get(1) + "\"" + "     }" + " }," + " \"stackLabels\": {"
+					+ "       \"color\": \"#434348\"" + "     }" + " }," + " \"stackLabels\": {"
 					+ " \"enabled\": \"true\"," + " \"style\": {" + "     \"fontWeight\": \"bold\","
 					+ "    \"color\": \"gray\"" + "   } " + "   }," + " \"title\": { " + "    \"text\": \""
-					+ StorageChartMeasure.DataVolume.getLabel() + "\"," + "    \"style\": {" + "       \"color\": \""
-					+ colors.get(1) + "\"" + "    }" + " }" + "}]";
+					+ StorageChartMeasure.DataVolume.getLabel() + "\"," + "    \"style\": {"
+					+ "       \"color\": \"#434348\"" + "    }" + " }" + "}]";
 
 		}
 
diff --git a/src/main/java/org/gcube/portlets/admin/accountingmanager/client/maindata/charts/utils/ColorsPalette.java b/src/main/java/org/gcube/portlets/admin/accountingmanager/client/maindata/charts/utils/ColorsPalette.java
new file mode 100644
index 0000000..071eb34
--- /dev/null
+++ b/src/main/java/org/gcube/portlets/admin/accountingmanager/client/maindata/charts/utils/ColorsPalette.java
@@ -0,0 +1,35 @@
+package org.gcube.portlets.admin.accountingmanager.client.maindata.charts.utils;
+
+import com.github.highcharts4gwt.model.array.api.ArrayString;
+
+/**
+ * 
+ * @author Giancarlo Panichi
+ *
+ */
+public class ColorsPalette {
+
+	private String[] palette = { "#87CEEB", "#DAA520", "#3CB371", "#FF4500", "#8FBC8F", "#FF00FF", "#BDB76B", "#5F9EA0",
+			"#A0522D", "#6B8E23", "#FFA07A", "#696969", "#DDA0DD", "#C71585", "#1E90FF", "#D2B48C", "#90EE90",
+			"#B22222", "#00CED1", "#9400D3", "#FFDAB9", "#663399", "#FFE4C4", "#ADFF2F", "#FF0000", "#00FFFF",
+			"#483D8B", "#FFFF00", "#00008B", "#FFDEAD", "#7CFC00", "#FF6347", "#AFEEEE", "#6A5ACD", "#FFFACD",
+			"#0000CD", "#F5DEB3", "#00FF00", "#FF7F50", "#7FFFD4", "#7B68EE", "#FFEFD5", "#0000FF", "#DEB887",
+			"#32CD32", "#FFA500", "#40E0D0", "#9370DB", "#FFE4B5", "#4169E1", "#BC8F8F", "#98FB98", "#8B0000",
+			"#48D1CC", "#800080", "#EEE8AA", "#00BFFF", "#F4A460", "#00FA9A", "#800000", "#556B2F", "#8A2BE2",
+			"#F0E68C", "#6495ED", "#B8860B", "#2E8B57", "#FFD700", "#66CDAA", "#9932CC", "#FFC0CB", "#87CEFA",
+			"#CD853F", "#228B22", "#DC143C", "#20B2AA", "#BA55D3", "#FFB6C1", "#B0E0E6", "#D2691E", "#008000",
+			"#CD5C5C", "#008B8B", "#FF00FF", "#FF69B4", "#B0C4DE", "#808000", "#006400", "#F08080", "#008080",
+			"#EE82EE", "#FF1493", "#4682B4", "#8B4513", "#9ACD32", "#FA8072", "#778899", "#DA70D6", "#DB7093" };
+
+	public ColorsPalette() {
+
+	}
+
+	public ArrayString getColorsPalette(ArrayString colors) {
+		for (int i = 0; i < palette.length; i++) {
+			colors.setValue(i, palette[i]);
+		}
+		colors.setLength(palette.length);
+		return colors;
+	}
+}
diff --git a/src/main/java/org/gcube/portlets/admin/accountingmanager/shared/Constants.java b/src/main/java/org/gcube/portlets/admin/accountingmanager/shared/Constants.java
index 2422cf9..2f07d58 100644
--- a/src/main/java/org/gcube/portlets/admin/accountingmanager/shared/Constants.java
+++ b/src/main/java/org/gcube/portlets/admin/accountingmanager/shared/Constants.java
@@ -50,7 +50,7 @@ public class Constants {
 	
 	//Top Number
 	public static final int TOP_NUMBER_DEFAULT = 10;
-	public static final int TOP_NUMBER_MAX = 50;
+	public static final int TOP_NUMBER_MAX = 100;
 	public static final int TOP_NUMBER_MIN = 1;