add fullscreen mode

[ytpk]

what about adding a full-screen mode with automatic stretching of the picture to the full screen?
I've done something like geforce now with an Android emulator for my weak phone to play games, but the browser bar and status bar really get in the way

[ytpk]

also, what about sndcpy?

[Sergey Volkov]

what about adding a full-screen mode with automatic stretching of the picture to the full screen?

It should be easy to implement.

what about sndcpy?

Not so easy. See #38.

I don't work at @NetrisTV and will not implement new features (only fix critical bugs).
But PRs are welcome.