Reads the shrink step published by the nearest toolbar root.
The value is resolved at the position of the component that calls this. A component that
renders the provider sits above it and will always read the default — so anything that needs
the real step must be a child of the toolbar, not the thing that builds it.
Returns number
The current step, or SHRINK_STEP.WIDE when there is no provider.
Reads the shrink step published by the nearest toolbar root.
The value is resolved at the position of the component that calls this. A component that renders the provider sits above it and will always read the default — so anything that needs the real step must be a child of the toolbar, not the thing that builds it.