I want to have custom CSS added to the basic shapes (rectangle and circle) in Looker Studio.

It seems like creating a community visualization is the only way to get there.

I try to dig through the whole setup and creation process. Created a cloud storage bucket and now want to start with the code.

However most of the tutorials, if helpful at all, show how to handle the data and settings.

I don’t find a simple approach to create a community visualization for the rectangle item that let’s me add the item and add a custom css field in the item settings.

Would gladly take any approach or idea how to get there.