public static Icon getHighlightIcon(Icon baseIcon) {
		loadImages();
		MultiIcon highlightIcon = highlightIconMap.get(baseIcon);

		if (highlightIcon == null) {
			highlightIcon = new MultiIcon(new HighlightIcon(COLOR_ICON_HIGHLIGHT));
			highlightIcon.addIcon(baseIcon);
			highlightIconMap.put(baseIcon, highlightIcon);
		}

		return highlightIcon;
	}
Returns an icon that adds highlighting to the provided icon.

@param baseIcon The icon to highlight.
@return the highlighted icon.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/datamgr/util/DataTypeUtils.java