old_contents: # -*- coding: utf-8 -*-
  from kivy.lang import Builder
  from kivy.properties import BoundedNumericProperty, ReferenceListProperty, ListProperty,BooleanProperty
  from kivy.uix.boxlayout import BoxLayout
  from kivymd.elevationbehavior import ElevationBehavior
  from kivymd.theming import ThemableBehavior
  from kivy.metrics import dp
  
  Builder.load_string('''
  <MDCard>
      canvas:
          Color:
              rgba: self.background_color
          RoundedRectangle:
              size: self.size
              pos: self.pos
              radius: [self.border_radius]
          Color:
              rgba: self.theme_cls.divider_color
              a: self.border_color_a
          Line:
              rounded_rectangle: (self.pos[0],self.pos[1],self.size[0],self.size[1],self.border_radius) 
      background_color: self.theme_cls.bg_light
  ''')
  
  
  class MDCard(ThemableBehavior, ElevationBehavior, BoxLayout):
      r = BoundedNumericProperty(1., min=0., max=1.)
      g = BoundedNumericProperty(1., min=0., max=1.)
      b = BoundedNumericProperty(1., min=0., max=1.)
      a = BoundedNumericProperty(0., min=0., max=1.)
      
      border_radius = BoundedNumericProperty(dp(3),min=0)
      border_color_a = BoundedNumericProperty(0, min=0., max=1.)
      background_color = ReferenceListProperty(r, g, b, a)
  
new_contents: # -*- coding: utf-8 -*-
  from kivy.lang import Builder
  from kivy.properties import BoundedNumericProperty, ReferenceListProperty, ListProperty,BooleanProperty
  from kivy.uix.boxlayout import BoxLayout
  from kivymd.elevationbehavior import ElevationBehavior
  from kivymd.theming import ThemableBehavior
  from kivy.metrics import dp
  from kivy.uix.widget import Widget
  
  Builder.load_string('''
  <MDCard>
      canvas:
          Color:
              rgba: self.background_color
          RoundedRectangle:
              size: self.size
              pos: self.pos
              radius: [self.border_radius]
          Color:
              rgba: self.theme_cls.divider_color
              a: self.border_color_a
          Line:
              rounded_rectangle: (self.pos[0],self.pos[1],self.size[0],self.size[1],self.border_radius) 
      background_color: self.theme_cls.bg_light
      
  <MDSeparator>
      canvas:
          Color:
              rgba: self.theme_cls.divider_color
          Rectangle:
              size: self.size
              pos: self.pos
  ''')
  
  
  class MDSeparator(ThemableBehavior,BoxLayout):
      """ A separator line """
      def __init__(self,*args,**kwargs):
          super(MDSeparator, self).__init__(*args,**kwargs)
          self.on_orientation()
      
      def on_orientation(self,*args):
          self.size_hint = (1,None) if self.orientation=='horizontal' else (None,1)
          if self.orientation=='horizontal':
              self.height = dp(1)
          else:
              self.width = dp(1)
  
  class MDCard(ThemableBehavior, ElevationBehavior, BoxLayout):
      r = BoundedNumericProperty(1., min=0., max=1.)
      g = BoundedNumericProperty(1., min=0., max=1.)
      b = BoundedNumericProperty(1., min=0., max=1.)
      a = BoundedNumericProperty(0., min=0., max=1.)
      
      border_radius = BoundedNumericProperty(dp(3),min=0)
      border_color_a = BoundedNumericProperty(0, min=0., max=1.)
      background_color = ReferenceListProperty(r, g, b, a)
  
subject: Add MDSeparator