That was honestly my thoughts too. I used Thunderbird years ago; now I'm a very happy Nylas user. I don't doubt that the Thunderbird team could spend the next

That was honestly my thoughts too. I used Thunderbird years ago; now I'm a very happy Nylas user. I don't doubt that the Thunderbird team could spend the next 3 years building a very polished desktop mail app using web technologies, but uh... ...do we need another? And if so, wouldn't it be better to fork Nylas as a base? I mean, they could probably get most of the way their with a couple pull requests to make themes more powerful and a custom theme...