We are working on testing moving from Confluence Server to Cloud.
As you know the CSS style capabilites have been removed from Cloud.
(Just bring them back. Yes, I've upvoted other requests)
But the choices Atlassian are making with their new formatting in Confluence Cloud simply do not work for us. We need to be able to style our pages differently.
So I started looking into themes. And came across this page:
https://developer.atlassian.com/cloud/confluence/theme-properties/
To my horror, at the top it says that the current Theme API is not compatible with the new UI being rolled out.
And they haven't decided if they will make it compatible.
Atlassian, you have to make it possible for us to format our pages however we need.
Make Themes compatible with whatever the new UI is.