ART feature requests and discussion

@agriggio
Having a look at Having trouble with my sky blueness . . . ., I uploaded ER6_4832.DNG and ER6_4832.CR3

There is a black strip on the left and bottom. Is it due to a bad raw crop?

Opening the two files, I remark that the Camera WB is different for the two files. Do you know where it comes from? I was not able to find the value in the exif data.

Thanks to have a look.