@Override
	public String getToolTip() {
		return HTMLUtilities.toHTML("Interpret value as a sequence of\n" +
			"hex numbers, separated by spaces.\n" + "Enter '.' or '?' for a wildcard match");
	}
{@link SearchFormat} for parsing and display bytes in a hex format. This format only 
accepts hex digits or wild card characters.
Ghidra/Features/Base/src/main/java/ghidra/features/base/memsearch/format/HexSearchFormat.java