You can create your own vectorization settings with Harmony. The vectorization parameters you create can be saved, shared and also inserted into the VectOptions.conf file used by the Scan and Control Center modules when scanning or vectorizing a series of drawings.
You can use an interface to select and test the different options, as well as type in some advanced settings.
The Vectorization Parameters dialog box lets you vectorize pencil drawings, along with any red, blue or green pencil marks you may have used to indicate highlights and shadows. The drawing will be vectorized into pure red, blue, green and black (RGB values), while creating colour art zones wherever lines connect. After painting in your tones and highlights, change your pure RGB colours to transparent (0 Alpha) in the Colour Picker window and watch the indicator colour zone lines disappear.