My misreading of the Microsoft BITMAPV5HEADER specification causes a
shift of three pixels when transferring between applications using this
format. This does not occur when moving within or between Blender
instances. This PR just removes the incorrect 12-byte offset. Note
that many applications prefer PNG transfers over DibV5 so testing this
might be non-obvious.
Pull Request: https://projects.blender.org/blender/blender/pulls/118417
a677518cb5