@
lantydlar - in Windows you can change the file type icons a couple of ways see ==>>
File Extension Icon - Change Default Icon
The utility mentioned there -- nirsofts File Types Manager -- will work on Windows '98 through Windows 10. I use that utility regularly.
Before you start changing file type properties via that utility or via registry hacking, I recommend you first take a system checkpoint, then if anything goes wrong you can do a system restore.
BR