Bug 122045 Template should show blank preview when there is no image
Create a template but do not associate an image with it. Place the template in the templates directory. Now, create a new report design. On the second page of the New Report dialog, select the template that has no image. Actual result: The preview appears as a white rectangle with a small red square in the top left. Expected result: The preview appears as a gray background in the preview image area.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/IReportGraphicConstants.java
public final static String ICON_EXPRESSION_GLOBAL = "Global";
	public final static String ICON_EXPRESSION_METHOD = "Method";
	public final static String ICON_EXPRESSION_STATIC_METHOD = "Static Method";
	public final static String ICON_EXPRESSION_MEMBER = "Member";
	public final static String ICON_EXPRESSION_STATIC_MEMBER = "Static Member";
	
	public final static String ICON_WIZARD_DATASOURCE = "DataSourceBasePage";
	public final static String ICON_WIZARD_DATASET = "DataSetBasePage";
	public final static String ICON_WIZARDPAGE_DATASETSELECTION = "DataSetSelectionPage";
	
	public final static String DIS = "DIS";	
	public final static String ICON_ATTRIBUTE_FONT_WIDTH = StyleHandle.FONT_WEIGHT_PROP;
	public final static String ICON_ATTRIBUTE_FONT_STYLE = StyleHandle.FONT_STYLE_PROP;
	public final static String ICON_ATTRIBUTE_TEXT_UNDERLINE = StyleHandle.TEXT_UNDERLINE_PROP;
	public final static String ICON_ATTRIBUTE_TEXT_LINE_THROUGH = StyleHandle.TEXT_LINE_THROUGH_PROP;
	public final static String ICON_ATTRIBUTE_BORDER_NONE = "BORDER_NONE";
	public final static String ICON_ATTRIBUTE_BORDER_FRAME = "BORDER_FRAME";
	public final static String ICON_ATTRIBUTE_BORDER_LEFT = "BORDER_LEFT";
	public final static String ICON_ATTRIBUTE_BORDER_RIGHT = "BORDER_RIGHT";
	public final static String ICON_ATTRIBUTE_BORDER_TOP = "BORDER_TOP";
	public final static String ICON_ATTRIBUTE_BORDER_BOTTOM = "BORDER_BOTTOM";
	public final static String ICON_ATTRIBUTE_TEXT_ALIGN_CENTER = DesignChoiceConstants.TEXT_ALIGN_CENTER;
	public final static String ICON_ATTRIBUTE_TEXT_ALIGN_JUSTIFY = DesignChoiceConstants.TEXT_ALIGN_JUSTIFY;
	public final static String ICON_ATTRIBUTE_TEXT_ALIGN_LEFT = DesignChoiceConstants.TEXT_ALIGN_LEFT;
	public final static String ICON_ATTRIBUTE_TEXT_ALIGN_RIGHT = DesignChoiceConstants.TEXT_ALIGN_RIGHT;
	public final static String ICON_ATTRIBUTE_TOP_MARGIN = MasterPageHandle.TOP_MARGIN_PROP;
	public final static String ICON_ATTRIBUTE_BOTTOM_MARGIN = MasterPageHandle.BOTTOM_MARGIN_PROP;
	public final static String ICON_ATTRIBUTE_LEFT_MARGIN = MasterPageHandle.LEFT_MARGIN_PROP;
	public final static String ICON_ATTRIBUTE_RIGHT_MARGIN = MasterPageHandle.RIGHT_MARGIN_PROP;