The Settings tab of the font style tag properties folder displays the current settings of the properties for the font style tag, and enables you to change these settings using the Change button to open the Font dialog box.

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The Fixed Pitch checkbox enables you to indicate whether or not constant character spacing will be employed for this font style tag (i.e. if the width and height of the font configured for this tag should be fixed.
By default, the Fixed Pitch checkbox is not selected.
The Change button opens a Font dialog that enables you to configure the property settings (font, style, and size) for the selected font style tag.