Hello,
I need to add a subtitle on a part of the movie, but it needs to contain a background color fill, so it blends in over the movie's yellow background (and also covers part of it - so transparent won't do).
I added the subtitle with the yellow background, but a gray-ish border appears around the rectangle where the subtitles are, noticeably at the bottom and at the right.
That is, the subtitle contains a border, that is not in the same color as the selected background.
This rectangle does not appear when the subtitles don't contain any background at all.
Why is this border being added (and in a color different from the selected background)?