Samsung Galaxy S7, App help needed before I start pulling my hair out

[waisted skirt]

Have some how managed to install a Christmas App on my phone that has 'Christmasised' my entire phone. Every alert now has a Christmas theme and even all my screen icons are draped in snow. How do i get rid of this as i cannot figure it out. Any help would be greatly received, thanks guys.

 

[Mr Bond]

Is it under themes like on the iphone (I have a Samsung but recall something similar)

 

[Randomone]

Try Settings-Apps-[the app in question]-Uninstall

 

[waisted skirt]

Is it under themes like on the iphone (I have a Samsung but recall something similar)

You sir are a legend, that's done it, many thanks.