Wallpaper Engine enables you to use live wallpapers on your Windows desktop.
Various types of wallpaper are supported, including 3D and 2D animations, websites, videos and even certain applications.
This is a community-made API that is frequently being updated and allows you to use DLL mods.
It's a slightly bigger hassle to install these mods than the XNB ones—as you first need to install SMAPI and then download DLL mods to place into SMAPI's mod folder—but it also allows those mods to make much deeper changes to the game.
As a general rule of thumb, 3D, 2D and video based wallpapers will perform best, while websites and applications will require more resources from your system.
Having a dedicated GPU is highly recommended, but not required.
Updated 2/6/18Stardew Valley still doesn't have official Steam Workshop support, but its modding community has come leaps and bounds since the game launched in 2016.
Wallpaper Engine aims to deliver an entertaining experience while using as few system resources as possible.
Though, like I said, you should make a back-up of the original in case you want to remove the mod.
Stardew Modding API (SMAPI)Mods that make more complex changes may require the "Stardew Modding API", or SMAPI for short.
Existing users don’t have to do this, but you can still re-open the dialog at the top of the filter menu.
It simply applies some presets to the existing tag filter options.The Steam Workshop integration will allow you to share your own wallpapers with the Steam community.