Is there an easy way to display image in Grid column headers. So I am able to show text but I want an icon right next to my column header text displayed.

I tried using SafeHTML but it doesn't seem to work just displays and long text of string.

Image img = new Image(ExampleImages.INSTANCE.checked());
SafeHtml headerHtml = SafeHtmlUtils.fromString("<div style=\"text-align:center;\">" + img.toString() + "</div>");
colConfig = new ColumnConfig<TransactionSummaryProxy, Double>(props.de4TransactionAmount(), 100, headerHtml.asString());