property Editor.PopupAppearance as InplaceAppearanceEnum
Retrieves or sets a value that controls the drop-down window's appearance.

TypeDescription
InplaceAppearanceEnum An InplaceAppearanceEnum expression that defines the drop-down window's border style.

By default, the PopupAppearance property is ShadowApp. Use the PopupAppearance property to change the drop-down window's border style. Use the Appearance property to define the editor's appearance.