'Return plugin font option.
All plugins in Spyder use a global font. This is a convenience method
in case some plugins will have a delta size based on the default size.'

def get_plugin_font(self, rich_text=False):

    if rich_text:
        option = 'rich_font'
        font_size_delta = self.RICH_FONT_SIZE_DELTA
    else:
        option = 'font'
        font_size_delta = self.FONT_SIZE_DELTA
    return get_font(option=option, font_size_delta=font_size_delta)
