Bubble Yellow or Green Grain Style is a pigment derived from the berries of the sea buckthorn species, commonly called Avignon berries or Persian berries from two historic sourcing areas; Recently, Italy has been a major source. The color, the main chemical component of which is rhamnetin, was formerly called pink (or pink); Recently, the yellow “rose” has been called Dutch rose, brown rose, English rose, Italian rose, or French rose to distinguish it from the light red “rose”; the first three were also used for similar eastern American black oak quercitron patches. Quercus velutino. Other names include Persian lake berry, yellow berry, and sea buckthorn berry.