关于标签背景颜色的Kivy

from kivy.app import App
from kivy.uix.label import Label
from kivy.uix.boxlayout import BoxLayout
from kivy.utils import get_color_from_hex

class MyLabelApp(App):
    def build(self):
        layout = BoxLayout(orientation='vertical')
        
        # 创建一个带有红色背景的标签
        red_label = Label(text='Red Label', background_color=(1, 0, 0, 1))
        layout.add_widget(red_label)
        
        # 创建一个带有绿色背景的标签
        green_label = Label(text='Green Label', background_color=(0, 1, 0, 1))
        layout.add_widget(green_label)
        
        # 创建一个带有自定义颜色背景的标签
        custom_color = get_color_from_hex('#FF00FF')  # 使用十六进制颜色值
        custom_label = Label(text='Custom Label', background_color=custom_color)
        layout.add_widget(custom_label)
        
        return layout

if __name__ == '__main__':
    MyLabelApp().run()