[vitus]

If anyone's curious, https://i.imgur.com/08vtB4n.png was my initial attempt to recover the garbled screenshot at the end of the post, although I did end up throwing away the vast majority of the pixels. It's at least vaguely recognizable as an OSX screenshot?

[vitus]

Okay. I've fully reconstituted the image, to the best of my ability: https://i.imgur.com/8XemFj2.png

    from PIL import Image
        
    png = Image.open('screenshot.png')
    pxl = Image.frombytes('RGB', (5120,200), png.tobytes()).load()
    
    new_img = Image.new('RGB', (1280, 800))
    new_pxl = new_img.load()
    
    for block in range(80):
        for x in range(16):
            for y in range(200):
                for offset in range(0,4):
                    new_pxl[block*16 + x, 4*y + offset] = pxl[(block*4 + offset) * 16 + x, y]
    
    new_img.show()

[Sevan777]

very cool :)