@Override
	protected Icon getUnresolvedReferenceValue(String primaryId, String unresolvedId) {
		Msg.warn(this,
			"Could not resolve indirect icon path for \"" + unresolvedId +
				"\" for primary id \"" + primaryId + "\", using last resort default");
		return LAST_RESORT_DEFAULT;
	}
Parses the value string into an icon or reference and creates a new IconValue using
the given key and the parse results.
@param key the key to associate the parsed value with
@param value the color value to parse
@return an IconValue with the given key and the parsed value
@throws ParseException if the value can't be parsed
Ghidra/Framework/Gui/src/main/java/generic/theme/IconValue.java