Why is this sphere important?

What is the list of colors that end with sphere?

The list of colours that end with sphere (the same with geometric shapes, animal shapes, plant shapes, balloons, etc.) are: Red sphere Black sphere Blue sphere Yellow sphere Pink sphere Silver sphere Green sphere Purple sphere Orange sphere Crimson sphere Navy sphere White sphere Gold sphere Teal sphere Brown sphere Indigo sphere Saffron sphere Amethyst sphere Vermilion sphere Chartreuse sphere Magenta sphere Viridian sphere Burgundy sphere Powder blue sphere Scarlet sphere Cyan sphere Azure sphere Lavender sphere Gray sphere Beige sphere Cerulean sphere Slate sphere Cobalt sphere Gunmetal sphere Copper sphere Bronze sphere Khaki sphere Citrine sphere Maroon sphere Olive sphere Peach sphere Cream sphere Sangria sphere Plum sphere Emerald sphere Cerise sphere Mauve sphere Moccasin sphere Aquamarine sphere Pearl sphere Turquoise sphere Platinum sphere Tan sphere Bittersweet sphere Periwinkle sphere Sapphire sphere Fuchsia sphere Dark green sphere Mahogany sphere Sea green sphere Claret sphere Lime sphere Amber sphere Ecru sphere Taupe sphere Tawny sphere Lilac sphere Ochre sphere Sepia sphere Celadon sphere Rust sphere Orchid sphere Ash gray sphere Steel blue sphere Sky blue sphere Burnt orange sphere Brick red sphere Caramel sphere Marigold sphere Burnt sienna sphere Verdigris sphere Indochine sphere Carmine sphere Linen sphere Goldenrod sphere Butterscotch sphere Dark gray sphere Harlequin green sphere Amaranth sphere Ultramarine sphere Royal blue sphere Garnet sphere Ebony sphere Ivory sphere Thistle sphere Jade green sphere Auburn sphere Sienna sphere Umber sphere Cadet blue sphere Dark brown sphere Orange peel sphere Salmon sphere Wisteria sphere Persimmon sphere Apricot sphere Brass sphere Ruby sphere Mint sphere Forest green sphere Aubergine sphere Hazel sphere Topaz sphere Bisque sphere Spring green sphere Rainbow sphere