When I researched white watercolors for my courses, all I found online were a bunch of long-winded articles making assumptions about the use of white. Often these articles are written for word count and sometimes not written by artists at all! Lengthy intros about breaking the rules, when in reality
Adding WHITE GOUACHE to WATERCOLOR (and comparing 5 BRANDS of
WATERCOLOR TECHNIQUES
Learn about watercolour pigments - how to read watercolour labels
An introduction to watercolor pigments - things you need to know
Should you use white watercolor paint?
Watercolor Opaque White. Comparing 5 Brands.
Blue Watercolor Paints according to Single Blue Pigments - Désiré
What is White Watercolour For?
Did you know your watercolors can do this?
Making Sense of Staining, Sedimentary and Transparent Pigments