Description
The author of the passage is discussing the differences between Blu and Green Earth watercolours. Blu is made with absolute purity of pigments, while Green Earth contains gum arabic. The author also mentions that Blu has no blending powders and no additives, while Green Earth has these. Finally, the author mentions that Blu is the whiteness of the paper that illuminates the painting, while Green Earth is the light behind the colour.
MaimeriBlu features an absolute purity of pigments that, together with gum arabic, compose the totality of the mixture. Imperceptible, transparent, clean. No blending powders, and no additives. Nothing harmonises or synchronises the shift between the various shades. The real value lies in the transparency of its colours and in the freshness of its washes. It is the whiteness of the paper that illuminates this type of painting. The light is behind the colour.