Examine source code of Jungle stormy

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Jungle stormy A",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-005-f5f3cf677b1f132c75ddc7bd319dd1fc.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(131, 151, 104)",
      "toolbar_text": "rgb(248, 241, 211)",
      "frame": "rgb(108, 131, 77)",
      "tab_background_text": "rgb(223, 223, 223)",
      "toolbar_field": "rgb(108, 131, 77)",
      "toolbar_field_text": "rgb(248, 241, 211)",
      "tab_line": "rgb(248, 241, 211)",
      "popup": "rgb(166, 183, 144)",
      "popup_text": "rgb(248, 241, 211)",
      "button_background_active": "rgba(248, 241, 211, 0.46)",
      "ntp_background": "rgb(248, 241, 211)",
      "ntp_text": "rgb(131, 151, 104)",
      "popup_highlight_text": "rgba(248, 241, 211, 0.44)",
      "sidebar_border": "rgba(108, 131, 77, 0)",
      "sidebar_highlight_text": "rgb(108, 131, 77)",
      "sidebar_highlight": "rgba(248, 241, 211, 0.46)",
      "sidebar_text": "rgb(131, 151, 104)",
      "sidebar": "rgb(248, 241, 211)",
      "tab_selected": "rgb(248, 241, 211)",
      "tab_text": "rgb(108, 131, 77)",
      "toolbar_bottom_separator": "rgba(223, 223, 223, 0)",
      "toolbar_field_border": "rgba(248, 241, 211, 0)",
      "toolbar_field_highlight_text": "rgba(248, 241, 211, 0.44)",
      "toolbar_field_highlight": "rgba(248, 241, 211, 0.38)",
      "toolbar_field_separator": "rgba(223, 223, 223, 0)",
      "toolbar_field_text_focus": "rgb(248, 241, 211)",
      "toolbar_top_separator": "rgba(223, 223, 223, 0)",
      "toolbar_vertical_separator": "rgba(223, 223, 223, 0)",
      "tab_loading": "rgb(248, 241, 211)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{dafdf136-7ed2-478a-bc71-f9e4de924252}"
    }
  }
}