Waila is a handy addon that adds a small yet useful feature to Minecraft: when you point at an item, it shows you its name in a tooltip. It might seem like a small addition, but it can be incredibly helpful, especially when you're dealing with lots of different items or trying to remember what something is called.
The beauty of Waila lies in its simplicity. It doesn't overwhelm you with information or clutter up your screen; it just quietly does its job, helping you identify items quickly and easily.