it's landscape orientation , example:

You can do custom styling on the nodes using generateNodeProps or use a theme :) Hope that helps
i'm so sorry, The doc it's simple, can you offer me a demo? thanks.
@Suremotoo, you might be better off creating a custom theme check this repo out and then just modify the components and styles to fit that drawing you've shown above
Link to the repo: https://github.com/fritz-c/react-sortable-tree-theme-full-node-drag
@Suremotoo feel free to reopen if you have more questions