More Styling Options for Subtitles

At the moment, subtitle text only has a basic background behind the text with no padding or breathing room around it. It will be useful to have control over the padding around text (and even the line heights) as this improves legibility. At the moment, there doesn't seem to be any way to alter the text outline / stroke. Sometimes white text should be outlined with a black stroke for better legibility when overlaid on video. It would be useful to have the ability to add an outline to text. At the moment, there doesn't seem to be a way to alter the subtitle text backgrounds at all. It would be useful to alter the roundness of the text backgrounds (corner radius) to better suit the brand or the tone of the videos we're adding captions to.

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