Sample font does work!
This is my settings.json
{
"$baseURI": "https://yal.cc/r/20/pixelfont/",
"$version": "1.0",
"in-glyphs": [
" ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789\"!?'.,;:()<>/-+=#_&~*¡¿%[]♦♣♠▲@©®«»$€¥£₽ßçæœÿàáâãäåèéêëìíîïñòóôõöùúûüẞÇÆŒŸÀÁÂÃÄÅÈÉÊËÌÍÎÏÑÒÓÔÕÖÙÚÛÜАБВГДЕЁЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЬЫЭЮЯабвгдеёжзийклмнопрстуфхцчшщъьыэюя"
],
"glyph-width": 10,
"glyph-height": 14,
"glyph-ofs-x": 2,
"glyph-ofs-y": 0,
"glyph-sep-x": 4,
"glyph-sep-y": 0,
"glyph-base-x": 0,
"glyph-base-y": 9,
"glyph-spacing": 1,
"font-is-mono": true,
"font-em-square": 1024,
"font-line-gap": 0,
"font-px-size": 128,
"font-ascend": 768,
"font-descend": -256,
"font-name": "Mystery Font",
"font-author": "You, of course",
"font-copy": "(c)",
"font-version": "Version 1.0",
"font-desc": "Sweet fonts to leave your worries behind you",
"font-license": "You have the permission",
"font-license-url": "",
"font-sample-text": "Hello!",
"font-preview-text": [
"adsadTHE QUICK BROWN FOX JUMPS OVER A LAZY DOG.",
"the quick brown fox jumps over a lazy dog.",
"0123456789"
]
}