Cables are simple to figure out, just look at the metal's properties
Copper: has a warm color, reddish/brown - cable believers thus say it is a "warm" sounding, "muddy" cable.
Silver: silver is shiny gray used by jewelers, whats easily associated with "speed" and " attention to detail", cable believers thus say it is a "fast, detailed" cable.
Gold: dark yellowish color, gold is the best of both worlds, both "fast and detailed" yet also "warm".
Look at cable reviews and 99% of them say exactly what I just said above. Basically, cable believers correlate the cable's color to the type of sound, and all science and measurements aside, if that doesn't prove it's a load of rubbish I don't know what will.