Styling Password Reset Handler Form

I was just wondering, does anyone know where I can go to style the password reset handler form? This is the form you get once you click on the link in the email that you receive after clicking forgot/lost password. I’m trying to customize the colors and layout and such but can’t seem to find a place where I can do so. Any help would be appreciated. Thank you.

https://www.ads-software.com/plugins/ppress/