Examine source code of Koi

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Koi",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png",
        "images/1.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "left bottom",
        "left center"
      ],
      "additional_backgrounds_tiling": [
        "repeat",
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(98, 121, 160, 0.64)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(124, 87, 167)",
      "tab_background_text": "rgb(255, 126, 200)",
      "toolbar_field": "rgba(41, 6, 98, 0.29)",
      "toolbar_field_text": "rgb(187, 209, 215)",
      "tab_line": "rgba(150, 228, 165, 0.53)",
      "popup": "rgba(199, 202, 215, 0.75)",
      "popup_text": "rgb(116, 30, 143)",
      "button_background_active": "rgba(225, 239, 114, 0.4)",
      "button_background_hover": "rgba(255, 249, 120, 0.47)",
      "frame_inactive": "rgba(235, 173, 173, 0.83)",
      "icons_attention": "rgba(117, 243, 193, 0.54)",
      "icons": "rgb(255, 255, 255)",
      "ntp_background": "rgba(180, 240, 192, 0.73)",
      "ntp_text": "rgb(255, 255, 255)",
      "popup_border": "rgba(143, 162, 207, 0.73)",
      "popup_highlight_text": "rgb(255, 183, 183)",
      "popup_highlight": "rgb(122, 228, 232)",
      "sidebar_border": "rgb(90, 90, 115)",
      "sidebar_highlight_text": "rgb(196, 221, 255)",
      "sidebar_highlight": "rgba(169, 228, 214, 0.45)",
      "sidebar_text": "rgb(213, 224, 235)",
      "sidebar": "rgb(68, 65, 92)",
      "tab_background_separator": "rgba(169, 246, 252, 0.98)",
      "tab_loading": "rgba(187, 212, 255, 0.98)",
      "tab_selected": "rgba(137, 190, 153, 0.18)",
      "tab_text": "rgba(255, 255, 255, 0.98)",
      "toolbar_bottom_separator": "rgba(160, 160, 160, 0.73)",
      "toolbar_field_border_focus": "rgba(190, 199, 226, 0.49)",
      "toolbar_field_border": "rgba(95, 74, 126, 0.43)",
      "toolbar_field_focus": "rgba(183, 197, 202, 0.19)",
      "toolbar_field_highlight_text": "rgba(184, 48, 101, 0.18)",
      "toolbar_field_highlight": "rgba(214, 33, 103, 0.18)",
      "toolbar_field_separator": "rgba(236, 143, 179, 0.18)",
      "toolbar_field_text_focus": "rgba(236, 142, 187, 0.31)",
      "toolbar_top_separator": "rgba(209, 77, 128, 0.44)",
      "toolbar_vertical_separator": "rgba(232, 103, 255, 0.44)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b32595bc-19d5-40d2-8cc5-2bd1f9fc2b69}"
    }
  }
}