diff --git a/designer-base/src/main/java/com/fr/design/mainframe/theme/preview/FormThemePreviewPane.java b/designer-base/src/main/java/com/fr/design/mainframe/theme/preview/FormThemePreviewPane.java
index 0fc194492..013ec9f1f 100644
--- a/designer-base/src/main/java/com/fr/design/mainframe/theme/preview/FormThemePreviewPane.java
+++ b/designer-base/src/main/java/com/fr/design/mainframe/theme/preview/FormThemePreviewPane.java
@@ -15,22 +15,25 @@ import com.fr.design.mainframe.theme.preview.ecpreview.ECComponentPreviewPane;
 import com.fr.general.Background;
 import com.fr.log.FineLoggerFactory;
 import com.fr.plugin.chart.PiePlot4VanChart;
+import com.fr.plugin.chart.attr.VanChartLegend;
 import com.fr.plugin.chart.attr.axis.VanChartAxis;
 import com.fr.plugin.chart.base.AttrLabel;
 import com.fr.plugin.chart.base.VanChartTools;
 import com.fr.plugin.chart.column.VanChartColumnPlot;
+import com.fr.plugin.chart.type.GradientType;
 import com.fr.plugin.chart.type.RadiusType;
 import com.fr.plugin.chart.vanchart.VanChart;
 import com.fr.stable.Constants;
 import com.fr.stable.StringUtils;
+
 import javax.swing.JPanel;
 import java.awt.AlphaComposite;
-import java.awt.Composite;
-import java.awt.Graphics2D;
 import java.awt.BorderLayout;
 import java.awt.Color;
+import java.awt.Composite;
 import java.awt.Dimension;
 import java.awt.Graphics;
+import java.awt.Graphics2D;
 import java.awt.geom.Rectangle2D;
 
 /**
@@ -183,11 +186,14 @@ public class FormThemePreviewPane extends TemplateThemePreviewPane<FormTheme> {
             vanChartTools.setFullScreen(false);
 
             PiePlot4VanChart plot = chart.getPlot();
-            plot.getLegend().setPosition(Constants.BOTTOM);
-            plot.setPlotStyle(ChartConstants.STYLE_NONE);
+            VanChartLegend legend = (VanChartLegend) plot.getLegend();
+            legend.setPosition(Constants.BOTTOM);
+            legend.setCustomSize(true);
+            legend.setMaxHeight(28);
+            plot.getGradientStyle().setGradientType(GradientType.NONE);
             plot.setInnerRadiusPercent(75);
             plot.getRadius().setRadiusType(RadiusType.FIXED);
-            plot.getRadius().setRadius(80);
+            plot.getRadius().setRadius(70);
 
             Object[] category = {StringUtils.EMPTY};
             Object[] series = {"A1", "B1", "C1", "D1", "E1", "F1", "G1", "H1"};