Alphabe Thursday Y is for Yellow

I have dined out on yellow far too many times; but needs must! Again I am at a loss struggling at the end of the alphabet.  

But it is the brightest colour in the rainbow not because it is more intense but because it the yellow photons generate the biggest optical response from the eye.  I am not sure if yellow is regarded as a special colour in Tibet; certainly it is favoured in China as it is the emperors colour.  In some cultures it is considered less attractive and its  metaphorical and symbolic associations are denigrating.  It is traditionally the shade of treachery and cowardice.

Also clothing designers admit that yellow is very difficult to sell and inclined to call it gold! It cheers me though!