https://docs.unity3d.com/es/2017.2/ScriptReference/EditorGUI.PrefixLabel.html
EditorGUI-PrefixLabel - Unity Scripting API
Make a label in front of some control.
unityscriptingapi
https://docs.unity3d.com/6000.3/Documentation/ScriptReference/EditorGUI.PrefixLabel.html
Unity - Scripting API: EditorGUI.PrefixLabel
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