When I want a bright white highlight on a sketch, I often count on white gouache to do the job. All whites are created equal, right? Wrong. In fact, even all Titanium Whites are not created equal. On my sketches, I've noticed if a brand of white gouache isn't a brilliant white, or isn't opaque enough, or has an annoying sheen to it. Whether this is due to different brands of the pigment itself, or differences in the color of the binders, the whites are not the same. Consistency, texture, ease of application, and sheen also vary, which affect their use and appearance.
Over the years, as I accumulated and used new gouache and watercolor whites, I made swatches of them on gray paper to see how they measured up against one another. Today, I noticed that there were 20 swatches on the sheet, so I thought it was time for a little Reveal Party.
