private void assignNormalizedIconValues() {
		for (String lafId : extractedValues.getIconIds()) {
			String createdId = LAF_ICON_ID_PREFIX + lafId;
			Icon icon = extractedValues.getResolvedIcon(lafId);
			if (icon != null) {
				normalizedValues.addIcon(new IconValue(createdId, icon));
				javaIdToNormalizedId.put(lafId, createdId);
			}
		}
	}
Populates the GThemeValueMap with normalized icon ids. For example
it will assign "laf.font.CheckBox.icon" to a direct icon that was mined from the UiDefaults
using the id "CheckBox.icon"
Ghidra/Framework/Gui/src/main/java/generic/theme/laf/UiDefaultsMapper.java