Some are little more than cheap photocopies, with someone hitherto unknown (or, increasingly, far too well known) colouring in the original and trying not to go outside the lines.
We noted above the role of known colour genes (Pax3/ Pax7) in muscle development.
"I'd been brought up in a household which never knew colour so that was never an issue but what those 30 guys did for South Africa was unbelievable.
"Greed, like all the vices of mankind, does not know colour," says Munro, who is currently awaiting the outcome of an Apprehended Violence Order taken out against what she calls Tongan "goons" in the employ of Mundine.
Like most British regiments, the 52nd carried flags known as "colours": the First, or "King's Colour", and the Second, or "Regimental Colour".
Flags of various forms and purpose are known as colours, standards, banners, ensigns, pendants (or pennants), pennons, guidons, and burgees.
But to anyone who has a colour vision deficiency, commonly known as colour blindness, the bold reds that dominate the Degas work may look very different.
In analogy to the three primary colours of light, the new property became known as colour and the three varieties as red, green, and blue.
The effect of the strong contrast was to turn a mere frock into a poster in the most disturbing colours known to man, the colours of chaos.
