Examine source code of Vista Modernized

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Vista Modernized",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(0, 0, 0, 0)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(18, 23, 53)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgba(255, 255, 255, 0.1)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgba(255, 255, 255, 0)",
      "popup": "rgba(30, 30, 30, 0.77)",
      "popup_text": "rgb(255, 255, 255)",
      "icons_attention": "rgb(0, 211, 40)",
      "ntp_background": "rgb(11, 44, 57)",
      "popup_border": "rgba(255, 255, 255, 0.1)",
      "tab_loading": "rgb(0, 211, 40)",
      "tab_selected": "rgba(0, 0, 0, 0.6)",
      "tab_text": "rgb(255, 255, 255)",
      "toolbar_bottom_separator": "rgba(11, 44, 57, 0)",
      "toolbar_field_border_focus": "rgba(255, 255, 255, 0.15)",
      "toolbar_field_border": "rgba(255, 255, 255, 0)",
      "toolbar_field_focus": "rgba(30, 30, 30, 0.97)",
      "toolbar_field_highlight": "rgba(189, 203, 94, 0.52)",
      "toolbar_field_text_focus": "rgb(255, 255, 255)",
      "toolbar_top_separator": "rgba(37, 37, 37, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{77db827f-9f6c-4005-b798-1be6f12f7729}"
    }
  }
}