A widget that can be displayed as a reusable "preview" tab. A preview tab is rendered with an
italic (unpinned) title and is promoted to a permanent tab once its content becomes dirty,
its title is pinned, it is double-clicked, or it is moved to a different tab-bar.
A widget that can be displayed as a reusable "preview" tab. A preview tab is rendered with an italic (unpinned) title and is promoted to a permanent tab once its content becomes dirty, its title is pinned, it is double-clicked, or it is moved to a different tab-bar.