public default DecompilerHighlighter createHighlighter(CTokenHighlightMatcher tm) {
		return createHighlighter((Function) null, tm);
	}
Creates a highlighter that will use the given matcher to create highlights as functions
get decompiled.  The highlighter created will be applied to every decompiled function.  

@param tm the matcher
@return the new highlighter
Ghidra/Features/Decompiler/src/main/java/ghidra/app/decompiler/DecompilerHighlightService.java