I have this intentionally bluish/cool painting that I painted a couple of weeks ago. I am a direct painter and have not done much painting in layers. Today, as an experiment, I glazed my thoroughly dry bluish painting with Indian Yellow. I used a mixture of galkyd lite and the paint and rubbed it into the canvas. The yellow neutralized a lot of the blue/purple and warmed up the painting. Although both cool and warm versions seem adequate, Indian Yellow proved a good "secret weapon" for a painting that needed "something!" (Actually, I want to make a frisbee out of this painting).