When installing the mod select dinput8.dll as the loader. Afterwards you can bind all the actions within the StyleSwitcher.ini. For more info check the INPUT section found within documentation.html.
Each action can be assigned to two different buttons by inserting their respective key value in it. You can find all of those values here https://docs.microsoft.com/en-us/windows/desktop/inputdev/virtual-key-codes
Still I'd reccomend you to invest into a controller instead because the game controls much smoother with one.

totally unplayable(Impossible) on keyboard; but i played the original version when it came out 20 years ago and keyboard controls were flawless and configurable

https://steamcommunity.com/sharedfiles/filedetails/?id=3289595888