Brightness
        Inherits: Enum
Describes the contrast of a theme or color palette.
Properties
- 
          DARK–The color is dark and will require a light text color to achieve readable contrast. 
- 
          LIGHT–The color is light and will require a dark text color to achieve readable contrast. 
Properties#
DARK = 'dark'
  
      class-attribute
      instance-attribute
  
#
    The color is dark and will require a light text color to achieve readable contrast.
For example, the color might be dark grey, requiring white text.
LIGHT = 'light'
  
      class-attribute
      instance-attribute
  
#
    The color is light and will require a dark text color to achieve readable contrast.
For example, the color might be bright white, requiring black text.