libass/libass — pull request #139 by wm4 (2014-10-07 21:54:50+00:00)
Title: Make user font scale not affect signs in selective style override mode

The font scale set with ass_set_font_scale() normally affects all text.
If ass_set_selective_style_override_enabled() is enabled, then starting
with this commit, text which is not overridden is not scaled with the
font scale. This typically affects signs and such.