Need some help with the captioning tool, I think. Have imported a .srt file into Premiere, cut into timeline, and all the text comes in nicely. All text is also readable and editable in the caption tool. All good. Thing is, a semi-transparent box immediately behind the text is getting arbitrarily added and I can't figure out how to turn it on or off. I think I'd just like it universally on. Is it something native to the .srt file? Something in the caption tool? Thanks in advance!