The GUIStyle and GUISkin classes allow us to modify the look and feel of our GUI components.
These classes were originally used to customize the GUI of a video game developed in previous versions of Unity. After 4.6, and with the inclusion of a better UI system, their use refocused to helping with the customization of the Editor GUI. These two classes give the developers enough flexibility to make their tools look "professional" and have their own identity.
In this chapter, we will use the GUIStyle and GUISkin classes to modify the look and feel of the Level Creator tool.
Modifying the look and feel of the Level custom inspector to make clear the different sections it has
Modifying the look and feel of the Palette window to make the top buttons (toolbar) look more like tabs
The final result will look like this:
