@eyesofnova I'm guessing the box you were changing subtitles in was the general Settings for all videos. You can turn subtitles on and off for a particular movie from that movie's language settings (check while it's playing).

I can't see any way to log in or access premium features from Chrome on Linux. I paid for Premium membership, so I could use the android remote, but is that it? I can't even find a playlist selector/editor. The web interface looks the same as before. EDIT: I found the Playlist editor. I had to enable Playlists in Settings.

No, you can't resize hard-coded / burned-in subtitles. You can't alter them at all; they're a part of the video same as grass, trees, and faces. You can't resize any of those.

If your subtitles are changing in size relative to the rest of the video when changing from your PC to being casted, then the subtitles are not hard-coded. They are just inside the mkv container and not a separate subtitle file.

I'm not sure if I'm replying in the right place; I was funneled here . . .

To get around not being able to cast from my chromebook, I went into my xfce4 crouton and installed Chrome (the browser) -- inside the linux that is "inside" ChromeOS. That worked OK, but when trying to use Videostream from within this setup, I'm told there is a firewall blocking me.

Is it ever going to be possible to videostream from within a crouton? Or should I uninstall Chrome from within the linux crouton and just use the built-in Firefox? I know of the workaround for the ChromeOS, so I'll stay there if need be. Having options is nice, though.