Examine source code of Natural Mystic

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Natural Mystic",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg",
        "images/1.jpg",
        "images/2.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center center",
        "left top",
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat",
        "repeat",
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(36, 69, 89, 0.29)",
      "toolbar_text": "rgb(3, 8, 2)",
      "frame": "rgb(9, 23, 32)",
      "tab_background_text": "rgb(4, 17, 0)",
      "toolbar_field": "rgba(1, 1, 8, 0.38)",
      "toolbar_field_text": "rgb(255, 248, 5)",
      "tab_line": "rgb(77, 247, 12)",
      "popup": "rgba(2, 120, 210, 0.95)",
      "popup_text": "rgb(218, 228, 2)",
      "tab_loading": "rgb(77, 247, 12)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b3a9f5f2-a9c8-4c64-9381-8b1693227d5c}"
    }
  }
}