@Override
	public void optionsChanged(Options options, Program program) {
		fillerValue = options.getString("Filler Value", fillerValue);
		minBytes = options.getInt("Minimum number of sequential bytes", minBytes);
	}
This function tries to determine the fill value used by the current program.
The byte value occurring most is the winner.

@return filler value
@throws Exception
Ghidra/Features/Base/src/main/java/ghidra/app/analyzers/CondenseFillerBytesAnalyzer.java