New Theme

[TheDreadPirate]

You would add a block in config.json located in the jellyfin-web folder. In the jellyfin-web folder there is a "themes" folder that config.json would refer to. In that folder are the images and css for your theme.

Here are the themes from a default config.json.

Code:

"themes": [
    {
      "name": "Apple TV",
      "id": "appletv",
      "color": "#bcbcbc"
    }, {
      "name": "Blue Radiance",
      "id": "blueradiance",
      "color": "#011432"
    }, {
      "name": "Dark",
      "id": "dark",
      "color": "#202020",
      "default": true
    }, {
      "name": "Light",
      "id": "light",
      "color": "#303030"
    }, {
      "name": "Purple Haze",
      "id": "purplehaze",
      "color": "#000420"
    }, {
      "name": "WMC",
      "id": "wmc",
      "color": "#0c2450"
    }
  ],

You'd add another block for your theme. Create a folder in the themes folder with the same name and place your css and images in that new folder.