I'm glad you brought that up, Michele. It is important to think about the future, and I am usually so enthusiastic about painting now that I forget to consider what might happen down the road.
I tend to put a lot of paint on the light areas, less in the midtones, and even less in the shadows. Since my ground is a midtone, would it be bad if the color on top thinned or lost color so that the ground showed through more? Same with the shadows. On the other hand, what if you don't tone the canvas. Would the white show through, and is that what we would prefer?
The other thing I am wondering about is whether the colors in the toning mixture would be fading at the same rate as the top layers of paint. This would certainly occur if I mixed a ground color from the dominant shadow color in my painting and its complement, thus making a neutral. Then the same pigments would be in the ground and in the painting.
Gosh, Michele, I never thought about any of this until you brought it up! Is there anyone out there who KNOWS?
Alex
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