how would I reset the standalone input controls?

So I am trying to play a game known as Beware and I changed the controls for steering (on my controller) and now I cannot change it back to what it was originally set to.

This is what I'm talking about btw ^. I just want to know if there's a way I can reset the input controls to what they originally were when I downloaded the game, or if I can delete something so I can redownload it and have the controls back. I've tried redownloading it but it just keeps the controls the same.

Also I have tried looking for this question, but either I do not know how to explain it to google, or all the questions are different from what I am looking (except for one I found with the same exact question but no one answered it)