How do I edit/replace the font in Flowers - Shiki?

[ghost]

From FONT.PAK, there are some files that I think will be able to do this. One is info52, and the others are the font bitmaps (明朝52 is included as an example), with 52 being the font size used for the in-game text.

I was able to export some files from info52 using 'info' as the file type (info52_, info52_dicStr_sort2.txt, info52_string_sort_utf-8.txt), and of these, I believe info52_dicStr_sort2.txt will let me edit the width of the characters when pulled from the font bitmap.

I was able to export the font bitmap 明朝52.png from 明朝52 using cz1 as the filetype. When using 'info' as the file type, I was able to export other files (明朝52_, 明朝52_dicStr_sort2.txt, 明朝52_string_sort_utf-8.txt), but I don't believe editing them is necessary.

My question is, if I edit info52_dicStr_sort2.txt from info52, and 明朝52.png from 明朝52, how do I import them back into the main files (info52 and 明朝52)? Let me know if I need to provide any more information or if any of my assumptions were incorrect. All of the files I've referenced are in the attached zip.

flowers_shiki_font_edit.zip

One last question that I'm sure won't have an answer: Is there a way to decrease the line spacing in the game's text box, and add a fourth line?