Does tailwind-3dtransforms-plugin support autocomplete?

Yes.

To get the autocomplete support you can install the official tailwindcss extension for VSCode and other supported IDEs.

You can find supported IDEs here.

After you install the extension/plugin, make sure you also have installed this plugin and added to plugin list of tailwind.config.js file. You can find the complete installation tutorial on quick-start.

Once you added our plugin to the tailwind.config.js, autocomplete should be available for all classes.

If you find any issues, you can raise an issue on the tailwind-3dtransforms-plugin repository.