3.5.2 `style.i' functions
If you need to control details of the graphics style from a Yorick
program, you can include the library file `style.i':
This defines functions get_style and set_style which enable you to
determine and change every detail of Yorick's graphics style model.
Functions read_style and write_style read from or write to a text file
in the format used by the style= keyword.