Test Cases for g-add-color-scale-button
      
      Add unlinked color (add-color-scale-random)
      
        A New g-palette-color-scale is added with a random hex code, unlinked to the primary
      
    
        add-color-scale-random)g-palette-color-scale is added with a random hex code, unlinked to the primary
      
      Add linked color via complement (add-color-scale-complement)
      
        New g-palette-color-scale elements are added linked to the primary as complement
      
    
        add-color-scale-complement)g-palette-color-scale elements are added linked to the primary as complement
      
      Add linked color via split-complement (add-color-scale-split-complement)
      
        New g-palette-color-scale elements are added linked to the primary as split-complement
      
    
        add-color-scale-split-complement)g-palette-color-scale elements are added linked to the primary as split-complement
      
      Add linked color via analogous (add-color-scale-analogous)
      
        New g-palette-color-scale elements are added linked to the primary as analogous
      
    
        add-color-scale-analogous)g-palette-color-scale elements are added linked to the primary as analogous
      
      Add linked color via triad (add-color-scale-triad)
      
        New g-palette-color-scale elements are added linked to the primary as triad
      
    
        add-color-scale-triad)g-palette-color-scale elements are added linked to the primary as triad