SET_DEFAULT_FACE_PART_COLOR defines the color attribute automatically attached to a new face part.
Until the default is reset, whenever a face part is created it is assigned the default color.
--->(SET_DEFAULT_FACE_PART_COLOR)-----|GET_RGB_COLOR|---->
SET_DEFAULT_FACE_PART_COLOR :HSL 0.4,0.78,0.98
Alternatively, you can use the HSL and RGB sliders on the color menu to specify the default face part color.