Examine source code of Sunwin

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "special Christmas tree",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right bottom"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(206, 211, 178, 0.37)",
      "toolbar_text": "rgb(225, 62, 102)",
      "frame": "rgb(242, 242, 227)",
      "tab_background_text": "rgb(0, 0, 0)",
      "toolbar_field": "rgba(255, 255, 255, 0.2)",
      "toolbar_field_text": "rgb(225, 62, 102)",
      "tab_line": "rgb(141, 248, 112)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(7, 93, 23)",
      "tab_loading": "rgb(141, 248, 112)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c0ec935a-c02c-49cb-8fce-b8edff271096}"
    }
  }
}