Examine source code of Lantern

{
  "manifest_version": 2,
  "version": "1.1",
  "name": "Lantern theme",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-009-f069b97f439938a011297c84464f0df6.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(37, 36, 34)",
      "toolbar_text": "rgb(192, 177, 157)",
      "frame": "rgb(37, 36, 34)",
      "tab_background_text": "rgb(192, 177, 157)",
      "toolbar_field": "rgb(251, 236, 133)",
      "toolbar_field_text": "rgb(81, 49, 29)",
      "tab_line": "rgb(90, 88, 80)",
      "popup": "rgb(251, 236, 133)",
      "popup_text": "rgb(81, 49, 29)",
      "tab_loading": "rgb(90, 88, 80)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c34d1538-c9cc-4314-90e6-74148abc220b}"
    }
  }
}