Despite setting a size, and even setting the 'Scale' values, repeated attempts to make the burnt-in subtitles on an .mp4 encode will not appear smaller than the default settings. Of 22?
The default settings are too large for 720px video height.
Using the above configuration screen and setting a value of 12, the subtitles appear to remain at the 22 (?) size.
Even setting values in the "Subtitle Style" option, did not appear to have any effect on the subtitle size.
Any idea where or how a size specification may be made?