    public static String version() {
        // surface pro + lambas + concurrent drawing + marking + styled output
        // Version with everything double-sized in order to work on the Surface tablet
        // DONT GIVE TO ANYONE ELSE!!!
        // ignore the fixes to the Key listener to recognise the arrow keys on mac OS
        // this version catches exceptions and pops up a dialog box;
        //      also added resetFontSize and resetLineWidth
        return "ecs100 surface pro library version March 2019";
    } // end of version
