OptionaladdWhether the button to add new tabs is enabled.
The default is false.
OptionaldocumentThe document to use with the tab panel.
The default is the global document instance.
OptionalrendererThe renderer for the panel's tab bar.
The default is a shared renderer instance.
OptionaltabThe placement of the tab bar relative to the content.
The default is 'top'.
OptionaltabsWhether the tabs are movable by the user.
The default is false.
An options object for initializing a tab panel.