I hoped that this extension would finally make it possible to see the evaluation chart without logging in, by using the local evaluations only,. I seriously think that that is one of the less frivolous updates Lichess could have: an easy way to understand the flow of the played game, ~immediate visual feedback to see where a mistake occurred and how one fared. Especially the casual players tend not to have an account, but would definitely be intrigued by such a graph if one were available more easily.