It seems a layer of varnish added later to protect the work is in fact turning the yellow to a greyish-orange colour.

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Both rebranded themselves: the Tories got a new logo and Sainsbury's binned its foul orange-and-brown colour scheme.

ECONOMIST: British politics

Though bright-red Japanese maples are most recognisable, many other showy trees burst into colour, like the deep golden ginkgo and burnt-orange zelkova trees.

BBC: K��y��: Japan��s autumn explosion of colour