A free mod for Stardew Valley, by Pathoschild.
Data Layers is a mod that allows you to overlay the world with data like the bee/Junimo/scarecrow/sprinkler coverage, hidden paths and warps, and more.
You can also get useful information like when a building or object is no longer coverable or when a mob/player is no longer in the world.
This is useful for single-player and multiplayer games. It also supports mods that have been installed in your game.
This mod is a very easy-to-use overlay that you can install in a few seconds. There is no need to have any previous knowledge of any other mod.