Oh, I know (I am a greying wizard), but why should the editor care? In theory, it should assume XCF, with the opened JPEG as the first layer.
Instead, it’s gotchas and RTFM. Which is sadly a very poor approach when developing a tool used by creatives who are vastly less likely to RTFM than the engineers making the tool.
Because JPEG images don’t have alpha transparency
Of course, my problem is that I am familiar with too many technical details
Oh, I know (I am a greying wizard), but why should the editor care? In theory, it should assume XCF, with the opened JPEG as the first layer.
Instead, it’s gotchas and RTFM. Which is sadly a very poor approach when developing a tool used by creatives who are vastly less likely to RTFM than the engineers making the tool.