Examine source code of Wonderfully Blue

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Wonderfully Blue",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-029-cc9cab928c1799136d18758709e91ecc.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(68, 161, 214)",
      "toolbar_text": "rgb(0, 23, 174)",
      "frame": "rgb(100, 197, 255)",
      "tab_background_text": "rgb(57, 62, 219)",
      "toolbar_field": "rgba(56, 130, 253, 0.64)",
      "toolbar_field_text": "rgb(31, 39, 203)",
      "tab_line": "rgb(33, 65, 204)",
      "popup": "rgb(177, 255, 255)",
      "popup_text": "rgb(39, 46, 173)",
      "button_background_active": "rgb(61, 135, 255)",
      "button_background_hover": "rgb(124, 177, 234)",
      "frame_inactive": "rgb(79, 102, 143)",
      "icons_attention": "rgb(1, 32, 138)",
      "icons": "rgb(2, 68, 172)",
      "ntp_background": "rgb(0, 81, 238)",
      "ntp_text": "rgb(41, 84, 166)",
      "popup_highlight_text": "rgba(0, 117, 255, 0.76)",
      "sidebar_border": "rgb(49, 101, 203)",
      "sidebar_highlight": "rgb(175, 195, 233)",
      "sidebar_text": "rgba(19, 139, 158, 0.76)",
      "sidebar": "rgb(132, 164, 226)",
      "tab_loading": "rgb(18, 76, 179)",
      "tab_selected": "rgb(8, 186, 255)",
      "tab_text": "rgb(65, 134, 255)",
      "toolbar_field_border_focus": "rgb(35, 164, 218)",
      "toolbar_field_focus": "rgb(40, 103, 215)",
      "toolbar_field_highlight": "rgb(46, 184, 242)",
      "toolbar_field_text_focus": "rgb(103, 192, 227)",
      "toolbar_top_separator": "rgba(29, 119, 225, 0.76)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ec000654-c319-4774-af5e-1a3b53667a25}"
    }
  }
}