Examine source code of Leather Office

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Leather Office",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "left top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(2, 35, 25, 0.35)",
      "toolbar_text": "rgb(247, 253, 251)",
      "frame": "rgb(102, 106, 99)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(231, 233, 237)",
      "toolbar_field_text": "rgb(90, 93, 154)",
      "tab_line": "rgba(255, 255, 255, 0.42)",
      "popup": "rgba(76, 41, 5, 0.54)",
      "popup_text": "rgba(255, 255, 255, 0.88)",
      "tab_loading": "rgba(255, 255, 255, 0.42)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{0b05808a-0907-4b05-8c22-0f3df441dd1c}"
    }
  }
}