It's not perfect but it works. I tried to change all the buttons but for some reason the game ignores the icon01.tid file.

Please be aware that the SYSTEM00000 also contains edited icon01.tid file with DS4 buttons instead of xbox but as I said the game ignores this and still shows xbox buttons.

Links: https://pastebin.com/QM5V8c7D

You can download SYSTEM00000 and replace it or if you want to do it yourself you can download parts00.tid and replace it manualy.

I used this guide to figure out how to mod the game:
http://gtm.steamproxy.vip/sharedfiles/filedetails/?id=409454600

And I took the buttons from this one:
http://gtm.steamproxy.vip/sharedfiles/filedetails/?id=720382941

I created this guide to help people and hopefully attract attention from someone who can figure out how to edit the rest of the icons.