Suggestion: Redesigning The Current Icon for Archives Assigned to Nanazip
I thought it would be better to change the current design of the icon that shows on the archives that are assigned to the program to be more than just a typical blank file icon with a little zipper on it. Changing it to something more visible and elegant, I was thinking maybe you could use the default launcher icon but with the archive's compression format written on it.
+1 for different icons for each file format
Currently, you can use available solutions outside the program: https://github.com/Wilenty/7zTC-7-ZIP-NanaZip-Theme-Changer https://github.com/RipplePiam/7zip-Theme
Apparently, the following solution works with Nanazip: https://github.com/wilenty/7ztc-7-zip-nanazip-theme-changer
File type icons follow the operating system's design guidelines. ——The designer of NanaZip 2.x application and file association icons
+1 for different icons for each file format
Since Windows does not display extensions in file type icons, all "same type - e.g. all compressed files / all vector files ..." file type icons associated with a certain program are the same.——The designer of NanaZip 2.x application and file association icons
File type icons follow the operating system's design guidelines. ——The designer of NanaZip 2.x application and file association icons
Well, unfortunately that seems to be a limitation in the OS itself which I think there's nothing to do about. But at least maybe you can change the current archives icon to be more visible and elegant as I mentioned.