Hierarchy Icons

You have the option to display icons on Hierarchy based on gameobject component.

The icon of the first component after the transform will be displayed. If no components exist, then the transform's component icon will be displayed by default.

Press the Colored Icon Button to show or hide hierarchy icons!

The way it works is by drawing on top of Unity's default Hierarchy since Unity doesn't allow us to modify the existing one. So that means double work!