Hello,

I have a photo with a jagged mountain and a cloudy sky. The sky is a bit overexposed. I want to lower its exposure by 1 stop. I'm trying to use the drawn&parametric mask.

Unfortunately I'm not able to select just the sky using the parametric mask, because of the clouds. The drawn mask (a path) darkens the top of the mountain too much. I've tried all the combine modes currently available, but I'm not able to achieve what I
want.

I think that it would make it easier for me to achieve what I want if a new mode is added. This mode will apply the parametric mask only if the drawn mask is not equal to either 1 or 0. The parametric mask would work only if drawn mask is in the range (0; 1). So in effect the parametric mask would be a modifier of the drawn mask and
only in the gradient part of the drawn mask.

What do you think? Is this something that is easy to experiment with? If I want to try
to code it where should I look in the source code?

Best regards,
Teodor
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