The Editor.WindowFlags.Customized field is a member of the Editor.WindowFlags enumeration. This enumeration is used to specify various window configuration options within the editor environment. The Customized flag indicates that a window has been customized beyond the default settings provided by the editor.

This flag can be combined with other flags in the WindowFlags enumeration to create a specific window configuration. The System.FlagsAttribute applied to the enumeration allows for bitwise operations, enabling multiple flags to be set simultaneously.

To use the Editor.WindowFlags.Customized flag, you can combine it with other flags from the WindowFlags enumeration using bitwise operations. This allows you to define a window with specific characteristics, including customizations.

For example, you might want to create a window that is both a dialog and customized. You can achieve this by combining the Dialog and Customized flags:

Editor.WindowFlags windowFlags = Editor.WindowFlags.Dialog | Editor.WindowFlags.Customized;