Examine source code of Itachi Dark Star

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "ItachiDarkStar",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(0, 5, 49)",
      "toolbar_text": "rgb(152, 151, 156)",
      "frame": "rgb(0, 23, 58)",
      "tab_background_text": "rgb(173, 172, 177)",
      "toolbar_field": "rgb(206, 208, 221)",
      "toolbar_field_text": "rgb(11, 11, 84)",
      "tab_line": "rgb(210, 208, 216)",
      "popup": "rgb(164, 164, 175)",
      "popup_text": "rgb(0, 23, 58)",
      "tab_loading": "rgb(210, 208, 216)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{f43efdd9-cedf-4c29-afef-70d065ada5ae}"
    }
  }
}