I have found that the apostrophe issue has a very simple fix.
The original game reads the apostrophe from the following location.
(https://i.imgur.com/0DXQkMT.jpg)
Reunion reads the apostrophe from the following location instead for some reason, maybe because DLPB finds that it looks a bit better.
(https://i.imgur.com/eCQw6oK.jpg)
Since GUI 2.1.0 does not replace every character that space is left blank in the replacement font files and nothing is displayed when the apostrophe is called in game while using Reunion. You can copy the apostrophe from the original spot in the GUI 2.1.0 files to where Reunion expects them to be and it will now show.
You can also get the button icons to show up when using Reunion by checking where they're supposed to be in the Reunion font files and inserting them in the appropriate places in the GUI 2.1.0 files. I found some vector graphics of the PlayStation buttons and they go well with the high resolution font.
So if your intent is to improve other languages what you want to do is find the original images and upscale and redo from there. i cannot remember the command offhand that will export the png files but that is what you want to doYou can do this with aali's driver. Add the option
save_textures = onto the config file and every texture it loads it will save to the mod_path.
It is complete. The character of the apostrophe is on the image sheets. If it is not showing up I am not sure whyThanks for your work! Nice and large font... But... there are no some symbols. As noticed here - there are no apostrophes.
Can't edit my post, so...
User tryinmorning had nice guess, but a little bit wrong.