Replace subtitles size settings "normal, large, huge, etc" by a slider with size % and higher size limit

When I’m direct playing movies with srt subtitles on my tv, the subtitle size on the “Huge” setting is still too small for my taste. Forcing a transcode is not always an option (4K or low-end server hardware).

It would be nice if that setting could be replaced by a slider with subtitle size in %. Similar to the slider for “fit screen, stretch, zoom, original, etc”. And with a higher limit than the current “Huge”!

Thanks!