I'm curious to try a solution such as electrochromic glass, but to get a better blackout the glass seems to need to be tinted. But on the Dreamliner plane, they

I'm curious to try a solution such as electrochromic glass, but to get a better blackout the glass seems to need to be tinted. But on the Dreamliner plane, they seem to have solved this. Not sure if it's just uneconomical at a house scale.