Examine source code of DuskTilDawn

{
  "name": "Dusk",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "qvidibf92gx81.png"
    },
    "colors": {
      "frame": "rgba(34, 38, 74, 1)",
      "tab_background_text": "rgba(46, 223, 232, 0.75)",
      "toolbar": "rgba(174, 57, 86, 1)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(130, 70, 120, 1)",
      "toolbar_field_text": "rgba(46, 223, 232, 0.75)",
      "tab_line": "rgba(231, 59, 101, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{aa18b093-9b23-498f-85e2-91f2dd5c3ced}"
    }
  }
}