Looking for a(n) App(s) that Can Change the Icon of the same File Type

[keyboardbroke]

I have been trying to Windows 7-ize my Windows 10 and so far, it has been a success. One of the problems that I am experiencing however, is that all the icons (i.e folder icons) are all from Windows 10. I did do some RegEdit magic to change the icons of the folders to how they looked like in Windows 7 however it only applies to folder icons in the file explorer while everywhere else it's the same (i.e taskbar). I tried downloading the IconChanger app and while it is good for changing the look of individual folders, I don't really understand how to change the look of all icons of the same type (what I mean by that is like I wanted to make all folders that contain text files or documents within them to use the "filled" fodler ion from WIndows 7). I know I sound kind of nitpicky about it but I regret buying Windows 10 too much to stick with such small details (no offense Windows 10 fans).