This mod adds a bunch of useful HUD elements to your screen that you can customize however you want.
It includes FPS counter, Coordinates/Nether Coordinates, Biome, Time, Durability, and Direction. basically all the info you'd normally have to dig through menus or console commands to find. Everything displays right on your screen in real time, so you can keep an eye on what matters without breaking your flow.
The FPS counter helps you see if your game is running smooth or if you're dropping frames. The coordinates show you exactly where you are, and if you're in the Nether, it'll convert them for you so you don't get lost. The biome display tells you what you're standing in. Time shows you what part of the day it is, durability tracks how worn out your tools and armor are getting, and direction tells you which way you're facing.
The cool part is that you can tweak literally everything. There's a custom settings button right on the pause menu where you can change the colors of each element and move them around on your screen however you like. Want your FPS counter in the corner? Done. Want your coordinates in the center? Easy. You've got full control over how it all looks and where it sits.
It's just a clean way to have all that useful info available without cluttering up your screen or forcing you to open a bunch of menus.