The statement "once you've modified the color of margins or columns or both in the preferences dialog box, each new document you create will have margins and columns that appear with those new colors" is False.
What is a dialog box?
The dialog box is a graphical control element that appears as a small window and conveys information to the user while also asking for a reaction. Depending on whether they prevent communication with the software that opened the dialog, dialog boxes are categorized as "modal" or "modeless." A dialog box is a transient window that a program creates to collect user input. Dialog boxes are frequently used in applications to ask users for more details about menu items.
Modeless, modal, and system modal are the three different forms of dialog boxes. In a program, modal dialog boxes are typically used to display messages and configure program settings.
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