This mod gives back the wallpaper and flooring back to you when you change it, so you can make quick changes to see what fits better. It works for the farm house and the island farm house.

To install, just unzip it and place the folder inside the smapi mods folder

this mod uses the Stardew Valley implementation of a decoratable place, so any mod that add places where you could place a wallpaperand/or floor should work (also should work with modded wallpapers and floors, but it wasn't tested).

Source code in my Github, it's free to use, just give the proper credits

Based on the mod WallPaper Recycler by Mizzion, just with a different implementation and working for stardew valley 1.6 and the island farm house.