If I remember tinted glass just doesn’t let light go through and makes you still able to see through it but depending on how you desire to make your farm you may need it or totally not.
Yeah, with the servants in this war, it going to be a serious battle royal. I don't know where the premier for foreign audiences is going to be, I'm going to assume it'll be hosted somewhere. I'm not sure what Aniplex prefers to put there shows onto. Somewhere on Crunchyroll, such as Babylonia so it might be through them.