'Checks if we have an image for this provider already.
Returns found image or the default newznab image'

def image_name(self):

    if ek(os.path.isfile, ek(os.path.join, sickbeard.PROG_DIR, u'gui', sickbeard.GUI_NAME, u'images', u'providers', (self.get_id() + u'.png'))):
        return (self.get_id() + u'.png')
    return u'newznab.png'
