By default, entries in text field objects are formatted as plain text. You can change this option to allow rich text formatting.However, for plain text entries, the font, style, and size used at design time are applied to user input. The form can be rendered more efficiently by using the text properties used in the form design.For rich text entries, users can customize the font style and size for text entered in the object. Although rich text entries may be useful in some situations, such as for narrative information, the extra attributes decrease performance.