Okay now I'm still confused (blonde). I went to download grim color reaper and all I got was some Reimage repair. Even if that is the correct name...okay I have that. I moved the .dll file to the effects folder and opened paint.net and an error said I was missing a file (the one I moved). It fixed it and opened paint.net. However I still have no clue once paint is open how to "set to white".
Sorry, I'm usually better at figuring these things out but this one has me totally confused.