blackAndWhiteNames property
Map of black and white swatches, with their near black and white colors to the black and white swatch names.
Use blackShade or whiteShade swatch as key to get its current name string.
Implementation
static Map<ColorSwatch<Object>, String> blackAndWhiteNames =
<ColorSwatch<Object>, String>{
blackShade: blackShadeName,
whiteShade: whiteShadeName,
};