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/ReportPlatformUIImages.java
ICONS_PATH + OBJ16_PATH + "master_page.gif" ); 
		declareImage( IReportGraphicConstants.ICON_ELEMNET_GRAPHICMASTERPAGE,
				ICONS_PATH + EVIEW16_PATH + "master_page.gif" ); 
		declareImage( IReportGraphicConstants.ICON_ELEMENT_PARAMETER,
				ICONS_PATH + OBJ16_PATH + "parameter.gif" ); 
		declareImage( IReportGraphicConstants.ICON_ELEMENT_PARAMETER_GROUP,
				ICONS_PATH + OBJ16_PATH + "parameter_group.gif" ); 
		declareImage(
				IReportGraphicConstants.ICON_ELEMENT_CASCADING_PARAMETER_GROUP,
				ICONS_PATH + OBJ16_PATH + "parameter_group.gif" ); 
		declareImage( IReportGraphicConstants.ICON_ELEMENT_ROW, ICONS_PATH
				+ OBJ16_PATH + "row.gif" ); 
		declareImage( IReportGraphicConstants.ICON_ELEMENT_SCALAR_PARAMETER,
				ICONS_PATH + OBJ16_PATH + "parameter.gif" ); 
		declareImage( IReportGraphicConstants.ICON_ELEMNET_SIMPLE_MASTERPAGE,
				ICONS_PATH + EVIEW16_PATH + "master_page.gif" ); 
		declareImage( IReportGraphicConstants.ICON_ELEMENT_STYLE, ICONS_PATH
				+ OBJ16_PATH + "style.gif" ); 
		declareImage( IReportGraphicConstants.ICON_ELEMENT_TABLE, ICONS_PATH
				+ PAL_PATH + "table.gif" ); 
		declareImage( IReportGraphicConstants.ICON_ELEMENT_TABLE_GROUP,
				ICONS_PATH + OBJ16_PATH + "table_group.gif" ); 
		declareImage( IReportGraphicConstants.ICON_ELEMENT_TEXT, ICONS_PATH
				+ PAL_PATH + "text.gif" ); 		
		declareImage( IReportGraphicConstants.ICON_ELEMENT_LIBRARY, ICONS_PATH
				+ OBJ16_PATH + "library.gif" ); 		
		declareImage( IReportGraphicConstants.ICON_ELEMENT_LIBRARY_REFERENCED,
				ICONS_PATH + OBJ16_PATH + "library_referenced.gif" ); 		
		declareImage( IReportGraphicConstants.ICON_ELEMENT_THEME, ICONS_PATH
				+ OBJ16_PATH + "theme.gif" );