Examine source code of Taylor Swift TTPD

{
  "manifest_version": 2,
  "version": "1.3",
  "name": "ttdk",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(145, 138, 127, 0)",
      "toolbar_text": "rgb(242, 238, 235)",
      "frame": "rgb(143, 124, 104)",
      "tab_background_text": "rgb(242, 238, 235)",
      "toolbar_field": "rgba(242, 238, 235, 0)",
      "toolbar_field_text": "rgb(242, 238, 235)",
      "tab_line": "rgb(242, 238, 235)",
      "popup": "rgb(242, 238, 235)",
      "popup_text": "rgb(50, 42, 33)",
      "button_background_active": "rgba(242, 238, 235, 0.5)",
      "button_background_hover": "rgba(242, 238, 235, 0.19)",
      "icons_attention": "rgb(242, 238, 235)",
      "icons": "rgb(242, 238, 235)",
      "ntp_background": "rgb(242, 238, 235)",
      "ntp_text": "rgb(50, 42, 33)",
      "popup_border": "rgba(225, 4, 4, 0)",
      "popup_highlight_text": "rgb(50, 42, 33)",
      "popup_highlight": "rgba(143, 124, 104, 0.64)",
      "tab_selected": "rgba(242, 238, 235, 0.23)",
      "tab_text": "rgba(242, 238, 235, 0.84)",
      "toolbar_bottom_separator": "rgba(242, 238, 235, 0)",
      "toolbar_field_border_focus": "rgb(143, 124, 104)",
      "toolbar_field_focus": "rgba(242, 238, 235, 0.84)",
      "toolbar_field_highlight_text": "rgb(242, 238, 235)",
      "toolbar_field_highlight": "rgba(143, 124, 104, 0.75)",
      "toolbar_field_separator": "rgba(242, 238, 235, 0)",
      "toolbar_top_separator": "rgba(242, 238, 235, 0)",
      "tab_loading": "rgb(242, 238, 235)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e97566da-9543-402c-923f-ea6059aeb307}"
    }
  }
}