code: def dark_palette(color, n_colors=6, reverse=False, as_cmap=False):
      
      gray = "#222222"
      colors = [color, gray] if reverse else [gray, color]
      return blend_palette(colors, n_colors, as_cmap)
docs: Make a palette that blends from a deep gray to `color`.
  
      Parameters
      ----------
      color : matplotlib color
          hex, rgb-tuple, or html color name
      n_colors : int, optional
          number of colors in the palette
      reverse : bool, optional
          if True, reverse the direction of the blend
      as_cmap : bool, optional
          if True, return as a matplotlib colormap instead of list
  
      Returns
      -------
      palette : list or colormap