Marker interface for node shapes.
If rendering engine developers want to add new shape,
they should use this interface.
Cytoscape Backwards Compatibility (API Interface): We expect that this interface will be used but not implemented by developers using this interface. As such, we reserve the right to add methods to the interface as part of minor version upgrades. We will not remove methods for any changes other than major version upgrades.
To use this in your app, include the following dependency in your POM: