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I have been working on porting a Chrome Extension to Safari. I've read a lot of forums here on this topic. But I couldn't find the answer to my question about how we can create a pop-up menu that can be opened by clicking on the Extension's Icon in the Safari. I have read in older posts here that it is not possible in Safari App Extension, but I was wondering has this feature been introduced lately in Safari App Extensions. If it is, can anyone direct me to where I can find the documentation so that I can build a popup UI? Also, I know it is not in the title, but what is the best resource to learn enough Swift to make a Safari App Extension.Thanks!