tool.setPreviewEnabled(false);
kit.addTool(tool);
kit.addTool(createVertexTool(NAME_VERTEXTOOL,
new JGraphpadRichTextValue(""),
JGraphpadVertexRenderer.SHAPE_RECTANGLE, null));
JComponent c = new JGraphpadHeavyweightRenderer();
kit.addTool(createVertexTool(NAME_HEAVYTOOL, c,
JGraphpadVertexRenderer.SHAPE_RECTANGLE, null));
kit.addTool(createVertexTool(NAME_ROUNDEDTOOL,
new JGraphpadRichTextValue(""),
JGraphpadVertexRenderer.SHAPE_ROUNDED, null));