if(arg instanceof PFont) {
_font = (PFont) arg;
} else if(arg instanceof String) {
String str = (String) arg;
_font = (str.indexOf(".vlw",str.length()-4) > 0)?
app.loadFont(str) : app.createFont(str,64);
} else if(arg instanceof HText) {
_font = ((HText) arg)._font;
} else if(arg == null) {
_font = app.createFont("SansSerif",64);
}