Variable: GtkStackSidebar
constGtkStackSidebar:"GtkStackSidebar"
Defined in: generated/jsx.ts:19812
Uses a sidebar to switch between GtkStack pages.

In order to use a GtkStackSidebar, you simply use a GtkStack to
organize your UI flow, and add the sidebar to your sidebar area. You
can use Gtk.StackSidebar.set_stack to connect the GtkStackSidebar
to the GtkStack.
CSS nodes
GtkStackSidebar has a single CSS node with name stacksidebar and
style class .sidebar.
When circumstances require it, GtkStackSidebar adds the
.needs-attention style class to the widgets representing the stack
pages.