anchor.diff:    FractalAlg = get_fractal_alg(BinaryMap),
     ImageFile = get_image_file(BinaryMap),
     ColorAlg = get_color_alg(BinaryMap),
  +  CReal = get_c_real(BinaryMap),
   
  -  CReal = maps:get(<<"cReal">>, BinaryMap),
     CImaginary = maps:get(<<"cImaginary">>, BinaryMap),
     ZReal = maps:get(<<"zReal">>, BinaryMap),
     ZImaginary = maps:get(<<"zImaginary">>, BinaryMap),
  
positive.code: check_color_alg(_) ->
    erlang:error(unknown_color_alg).
  
  
  
  
  
negative.code:   YImaginaryHigh = maps:get(<<"yImaginaryHigh">>, BinaryMap),
    Bailout = maps:get(<<"bailoutThreshold">>, BinaryMap),
    MaxIter = maps:get(<<"maxIterationThreshold">>, BinaryMap),
    lager:debug("need more checks on input in config_utils:jason2atom"),
  
    %% need to add checks on input here
    %% need to add optional parameters here (or default on gets above)
  