def bind(self, field_name, parent):
        self.source = field_name[:-len(self.field_name_suffix)]
        super().bind(field_name, parent)
This calculates the color value for the background
dataset/ETHPy150Open OpenSlides/OpenSlides/openslides/utils/rest_api.py/IdManyRelatedField.bind--crossover with--dataset/ETHPy150Open DexterInd/GrovePi/Projects/Advanced_RGB_LCD_TempAndHumidity/grovepi_lcd_dht.py/calcBG