doc/comment possible rendering issue
map FreeSerif to block Byzantine Musical Symbols
map FreeSerif to block Cyrillic Extended-A
map FreeSerif to block Glagolitic
map FreeSerif to block Hanunoo
map FreeSerif to block Musical Symbols
map font FreeSans to block Old Persian
map font FreeSans to block Ugaritic
map font Noto Serif Georgian to blocks

- Georgian
- Georgian Supplement
map font Noto Serif Khmer to blocks

Khmer and Khmer Symbols
map font Noto Serif Lao to block Lao
map font Noto Serif Thai to block Thai
add all languagegeek.com fonts (most unmapped)