There are many themes in romanticism but in my personal opinion the prominent theme would be that of emotion in its naturalist state. I can not guarantee you that each and every scholar agrees on this but inspiration and connecting emotionally with nature is what Romanticism heavily relied on. Hope this helps! If you have any other questions or would like further explanation just let me know! :)
Google is a search engine as you said.You don't take the information from it but through it so you will have give credit to the website/article owner you get information from.
