I take an interest in icon design and often extract icons from well known applications for personal use and tests in XnView MP. It's fun for me.
I took this recent screenshot from MP 0.38.7: 1.) So why do some .ico files are described as 'Windows Icon' and then some are 'ICO' - shouldn't all .ico be described as 'Windows Icon'? Regardless of page amount etc
2.) Why does .icns icons described as 'JPEG-2000'... Shouldn't they be described as simply 'Apple Icon image' , #reference Or does is it that the 'JPEG-2000' simply corresponds to the fact that the .icns has 256x-512x size pages contained?
3.) Oh, but then I tested .rsrc in the Browser file list and see that it's described as 'Mac OS Icon' -which is correct there

Just my feedback on this small noticed issue, nothing big -:)