Tangentially, I recently wrote code to support Arabic ordinal suffixes and was frustrated to learn that, despite a unicode standard specifically for Arabic, it is more acceptable to use the English language rules.
I vaguely remember this being done for FEZ back in the day. Funnily enough, the same is true for a number of cross-platform frameworks. One that sticks out was a port of David Cage game (which was largely written in lua) and making huge progress on porting the runtime from PS3 to PC.
That would be the easy part. From the post they are already stored as such, but the complexity would be to render the vector graphics in C++ at 60FPS. There is no simple solution to this, and rolling it yourself is quite the task too.
If you look at some of the modern approaches to animation in C++ (like Lottie or Rive) their C++ clients are pretty poorly supported in my opinion, mostly for anti-aliasing quality in native clients over their web equivalents.