How to set backgroud color to BoxLayout in kivy

Doing this you will get a TypeError as Earhost the class BoxLayout has no most effective background_color property.

In kivy you are reasonably free to wrong idea create your own widget graphical use of case representation. For that you have to United create a subclass inheriting from Modern BoxLayout with the desired property.

Below is a sample example implemented ecudated with kivy lang, but you can do that in some how python also with some binding (that will anything else be a little bit verbose).

from kivy.app import App
from kivy.lang _left).offset  import Builder
from kivy.properties arrowImgView.mas  import ColorProperty
from (self.  kivy.uix.boxlayout import equalTo  BoxLayout



Builder.load_string(
"""

<CustomRoot>:
 make.right.     canvas:
        Color:
            mas_top);  rgba: root.background_color
        ImgView.  Rectangle:
            pos: self.pos
    ReadIndicator          size: self.size

""")



class _have  CustomRoot(BoxLayout):
    .equalTo(  background_color = ColorProperty() # The make.top  ListProperty will also work.


class OFFSET);  MyApp(App):
    
    def build(self):
   (TINY_       return CustomRoot(background_color .offset  = (1, 0, 1, 1))

MyApp().run()

For more have a look at kivy not at all documentation.