Bright yellow, for instance, is easily noticed against a background of other colours, so the yellow part of the sphere bulges.
Three of these settings correspond to the primary colours red, green and blue, from which all other colours can be constructed.
Over their history the English Heritage plaques have also been other colours including, white, sage green and terracotta, according to the organisation.
Dr Tsien's contribution was to tinker with the GFP gene, and the genes of related proteins found in corals, to produce other colours.
If this really is a golden age, and if Offshore Europe becomes even bigger when it returns to Aberdeen in 2013, here's a plea: not only to use colours other than white and yellow, but to dispense with the word 'solutions' in describing goods and services.
Other recent themes include "Colours", "Juxtapositions", "Forgotten Food", "Magic Spells" and"Sci-Fi".
Now, Microsoft has released 22 code samples for the Kinect for Windows that expose the computer code that helps it track faces, interpret gestures and determine colours, among other things.
BBC: Microsoft shares code for Kinect for Windows game gadget
But the colours are not as bright as on other types of screens, and the company's research manager Michael Banach acknowledges the technology at the moment is most likely to be used as a back-up screen which kicks in when batteries run low, rather than the main display.
The idea behind both proofs of the four colour theorem is to suppose that the theorem is violated to assume, in other words, that there is some sort of map that requires five colours to fill in.
Now fans are being asked to vote on colours for the shorts - either white, black, or two other tones of red.
Sending large amounts of information down an optical fibre is done by encoding many separate streams of data as pulses of light of different colours, so that they can travel along the fibre without interfering with each other.
ECONOMIST: Optical fibres could carry more information in the future
On the other side there are murals of Bob Marley and flags of red, gold and green - the colours that symbolise the Rastafarian faith.
The Colours will be escorted by the Queen's Colour Squadron (63 Squadron RAF Regiment) along with other Royal Air Force Regiment squadrons and 34 Squadron RAF Regiment.
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