Hi und vielen dank, dass du dir die Zeit nimmst. Ich schreib mal in deutsch.
Also hier ist meine config: (ein paar Dinge hab ich schon herausgenommen, die ich nicht brauchte: playlist und share)
{
"base": "/player/",
"activeTab": "chapters",
"theme": {
"tokens": {
"brand": "#166255",
"brandDark": "#166255",
"brandDarkest": "#1A3A4A",
"brandLightest": "black",
"shadeDark": "#807E7C",
"shadeBase": "#807E7C",
"contrast": "#000",
"alt": "#fff"
},
"fonts": {
"ci": {
"name": "RobotoBlack",
"family": [
"RobotoBlack",
"Calibri",
"Candara",
"Arial",
"Helvetica",
"sans-serif"
],
"weight": 900,
"src": ["./assets/Roboto-Black.ttf"]
},
"regular": {
"name": "FiraSansLight",
"family": [
"FiraSansLight",
"Calibri",
"Candara",
"Arial",
"Helvetica",
"sans-serif"
],
"weight": 300,
"src": ["./assets/FiraSans-Light.ttf"]
},
"bold": {
"name": "FiraSansBold",
"family": [
"FiraSansBold",
"Calibri",
"Candara",
"Arial",
"Helvetica",
"sans-serif"
],
"weight": 700,
"src": ["./assets/FiraSans-Bold.ttf"]
}
}
},
Und hier noch meine episode.json (ich hab n paar sachen ge-Xt, weil das Projekt noch geheim ist 
{
"show": {
"title": "xxx",
"subtitle": "xxx",
"summary": "xxx",
"poster": "/test/assets/cover.jpg",
"link": ""
},
"title": "xxx",
"subtitle": "xxxx",
"summary": "xxxx",
"publicationDate": "2021-05-07T11:00:44+01:00",
"poster": "/test/assets/Cover.jpg",
"duration": "00:47:00.298",
"link": "",
"audio": [
{
"url": "xxx",
"size": "71862603",
"title": "MPEG-4 AAC Audio (m4a)",
"mimeType": "audio/mp4"
},
{
"url": "xxx",
"size": "95522160",
"title": "MP3 Audio (mp3)",
"mimeType": "audio/mpeg"
}
],
"files": [
{
"url": "xxx",
"size": "",
"title": "Sampler",
"mimeType": "audio/mp3"
},
{
"url": xxx",
"size": "132090",
"title": "Artwork",
"mimeType": "text/plain"
}
],
"chapters": "fixtures/chapters.json",
"contributors": [
{
"id": "1",
"name": "",
"avatar": "",
"group": { "id": "1", "slug": "onair", "title": "On Air" }
},
{
"id": "77",
"name": "",
"avatar": "",
"group": { "id": "1", "slug": "onair", "title": "On Air" }
}
],
"transcripts": "fixtures/transcripts.json"
}