Aboriginal-art-colors Aboriginal-art-colours adopted-in-1978 Australia black color colored coloring colors colour coloured colouring colours crease creased creases desert-rose distinctive emblem emblematic fabric features flag floral-emblem folds gossypium-sturtianum material Northern-Territory ochre official Patriotic patriotism self-government seven-petals sign Southern-Cross stars Sturt’s-desert-rose stylised symbol textile white