It’s a bit of both, Gianluca. Sigma’s Foveon sensor gets a lot of detail and color. But in post Sigma’s processing software has a feature called “fill light” that, when used with care, can bring out details that you might not notice otherwise. The reflections of the clouds in the water popped out when I applied fill light. I think it’s the same with the contrasts in the sky. Thanks Gianluca.