Each item of this dialog represents a separate characteristic of the style's font format.
Some items might be in a so called undefined state (or indeterminate state). Check boxes that are in this undefined state, are grayed. Edit boxes are blank. No items selected in a list box that is in the undefined state.
To specify the undefined state for a checkbox, just keep clicking it until it gets grayed.
To specify the undefined state for an edit box or for a list box, right-click it, then choose the Set Undefined State command from the menu:
Click the Default... button if you want the font format displayed by this dialog, to become the default font format in Atlantis. The Default... button saves the font format displayed by this dialog, to your default document template. This template is used by Atlantis for creating new documents.
Click Copy to place the font format displayed by this dialog, onto the Font Format Clipboard.
Click Paste to retrieve contents of the Font Format Clipboard.