Hello Andi B.
We need an icon like the original one in ICO format with all it's different (currently 5) resolutions. You may have discovered that the 4os2 icon in xcenter looks different then on the desktop. So I know the 2 are needed at least. Don't know about the ogher three though. See picture. Anyway the user can choice which icon he uses. Packing a few png in addition shouldn't be a big problem. But what would be the benefit? I mean everyone can take another icon maybe the pngs from here and attach it to his objects anyway. And not everyone does have/like .png icons installed.
Yes, I noticed that the smaller size icon in .ico format is needed. I want to play a little bit with it and make a zip file with the PNG and ICO format.
I haven't yet submitted anything to the developer, I just think that the 4OS2 project and ArcaOS can benefit to improve these icons (in a very little way), since the 4OS2 icons looks "out of tune" with the rest. The word "JP" no longer means something, not sure what SE represents, the icon does to represent a shell, etc.
But in the end if the developer doesn't want it, that's it.
Regards