Unity Script Reference:
Unity Tutorial 26 - GUI Boxes - YouTube
Question - How would I center GUILayout.Box on the inspector? - Unity Forum
Unity】GUI で使える Skin 一覧 - うにてぃブログ
noobtuts - Unity GUI Skins
Designing a GUI.Box help/guides? - Questions & Answers - Unity Discussions
Unity - Scripting API: GUILayout.Box
The gui box is overloaded with the background - Questions & Answers - Unity Discussions
gui - How to create a Unity Editor box grouping with a header and vertically stacked content inside? - Game Development Stack Exchange
EWS GUI Editor (Visual UnityGUI Editor) - Unity Forum
Unity - Scripting API: GUI.tooltip
GUI window gets drawn behind other gui elements. - Questions & Answers - Unity Discussions
Unity - Manual: Customization
noobtuts - Unity GUIs
Unity - Scripting API: GUILayout.BeginArea
HelpAttribute - allows you to use HelpBox in the Unity inspector window - Unity Forum
Unity Tutorials - How To Use A Check Box / Toggles & Display Error Messages - YouTube
Question - GUI.Box is darker - Unity Forum
Change GUI.Box Color? - Unity Forum
Custom Editor gui skin - Unity Forum
Unity - Scripting API: GUILayout.Window
Custom inspector difficulties creating a Box / Group like widget - Questions & Answers - Unity Discussions
