This Live Wallpaper app allows you to make the eges of your Galaxy Note 7 glow!

You can choose any main color and a background color.

There are a few other settings like edge width speed and sharpness.

You can also pick "Wallpaper Only" mode to set the Live Wallpaper into still Wallpaper Only mode.

Should work well even with the Grace TouchWiz UX !

Enjoy!