Select horizontal or vertical bar.
Show the sub-menu items on the left of the vertical navigation bar.
Select which item type that the settings should apply.
Set the space between each items. This setting is only applicable to "All main items".
Set the size of the item. Line height is normally set to the same as the item height. This will center the text vertically. If image is used and a fixed width item is desired, set the width and height to match the size of the image. If dynamic item width is desired, uncheck the item width and use only padding and margin settings.
Set the space between the border and the text. This is normally used for dynamic item width. For example, to make the item expand and shrink with the width of the text, set values to the left and right padding.
This setting is normally used together with background where a single image with round corners is used as item background.