> It might be nice to add a drying brush to the tool set which selectively dries the paint to prevent mixing. The effect of thinning out the paint is effectiv

> It might be nice to add a drying brush to the tool set which selectively dries the paint to prevent mixing. The effect of thinning out the paint is effectively letting more light passing through the paint and reflecting off the canvas instead. So in the case of drying out, seems it would be a good fit for simply painting on a new layer, and having the code reflect off the combined layers below. That would make it easier to change the paint/glaze on top, as well as not having to commit to drying the layer underneath.