def __init__(self, text='', font_string=None, margins: Margins = None):
super().__init__(margins)
self.text = text
if font_string is None:
font = QFont()
font.setStyleHint(QFont.Helvetica)
font.setFamily('Helvetica Neue')
# font.Helvetica
print('Default font:', font.family(), font.families(),
font.toString())
font.setPixelSize(USABLE_HEIGHT)
self.font_string = font.toString()
else:
self.font_string = font_string
