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
+ OBJ16_PATH + "data.gif" ); 
		declareImage( IReportGraphicConstants.ICON_ELEMENT_DATA_SET, ICONS_PATH
				+ OBJ16_PATH + "data_set.gif" ); 
		declareImage( IReportGraphicConstants.ICON_ELEMENT_DATA_SOURCE,
				ICONS_PATH + OBJ16_PATH + "data_source.gif" ); 
		declareImage( IReportGraphicConstants.ICON_ELEMENT_ODA_DATA_SET,
				ICONS_PATH + OBJ16_PATH + "data_set.gif" ); 
		declareImage( IReportGraphicConstants.ICON_ELEMENT_ODA_DATA_SOURCE,
				ICONS_PATH + OBJ16_PATH + "data_source.gif" ); 
		declareImage( IReportGraphicConstants.ICON_ELEMENT_SCRIPT_DATA_SET,
				ICONS_PATH + OBJ16_PATH + "data_set.gif" ); 
		declareImage( IReportGraphicConstants.ICON_ELEMENT_SCRIPT_DATA_SOURCE,
				ICONS_PATH + OBJ16_PATH + "data_source.gif" ); 
		declareImage( IReportGraphicConstants.ICON_ELEMENT_GRID, ICONS_PATH
				+ PAL_PATH + "grid.gif" ); 
		declareImage( IReportGraphicConstants.ICON_ELEMENT_TEXTDATA, ICONS_PATH
				+ PAL_PATH + "textdata.gif" ); 
		declareImage( IReportGraphicConstants.ICON_ELEMENT_GROUP, ICONS_PATH
				+ OBJ16_PATH + "group.gif" ); 
		declareImage( IReportGraphicConstants.ICON_ELEMENT_IMAGE, ICONS_PATH
				+ PAL_PATH + "image.gif" ); 
		declareImage( IReportGraphicConstants.ICON_ELEMENT_LABEL, ICONS_PATH
				+ PAL_PATH + "label.gif" ); 
		declareImage( IReportGraphicConstants.ICON_ELEMENT_LINE, ICONS_PATH
				+ OBJ16_PATH + "line.gif" ); 
		declareImage( IReportGraphicConstants.ICON_ELEMENT_LIST, ICONS_PATH
				+ PAL_PATH + "list.gif" ); 
		declareImage( IReportGraphicConstants.ICON_ELEMENT_LIST_GROUP,
				ICONS_PATH + OBJ16_PATH + "list_group.gif" ); 
		declareImage( IReportGraphicConstants.ICON_ELEMNET_MASTERPAGE,