Not so China's poorer interior, where the darkcolourof colas is associated with the dark tea traditionally used to mask the sediment in the local water.
Down a narrow alley not far from the sparkling city centrepiece of Federation Square is dark, pokey Rutledge Lane, where a wild riot ofcolour spills over every surface and stretches storeys high.
Upriver here and at the Sandrift River, which runs parallel 10 miles to the east, the colourof the water is striking - imagine looking into a cup of strong, dark coffee.