Within the java script code block you have access to the input table and can use a set of predefined libraries to generate the view.
Additionally you can export a static image to the workflow, if the view is generated as an SVG structure.
Note, this node is currently under development. Future versions of the node will have more functionality, including the ability to define and use templates.
The node supports custom CSS styling. You can simply put CSS rules into a single string and set it as a flow variable 'customCSS' in the node configuration dialog.
The style rules defined in such a way will override the style rules set in the node's dialog.
You will find the list of available classes and their description on our documentation page.