Svelte definitely is compelling, but one thing I really like about using React or Vue.js are the very mature communities and in particular the full-featured styled widget libraries. Projects like Semantic UI React[1] or Buefy[2] (Bulma/Vue.js) give you so many basic components that would be major time sink to create yourself in every project. Does Svelte have anything like this?

[1] https://react.semantic-ui.com

[2] https://buefy.org/documentation