Examine source code of Spirited Forest

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Spirited Forest",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(30, 53, 36)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(8, 33, 15)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(68, 89, 54)",
      "toolbar_field_text": "rgb(0, 255, 131)",
      "tab_line": "rgb(0, 194, 97)",
      "popup": "rgb(30, 53, 36)",
      "popup_text": "rgb(255, 255, 255)",
      "button_background_active": "rgb(0, 194, 97)",
      "button_background_hover": "rgb(68, 89, 54)",
      "icons_attention": "rgb(165, 255, 0)",
      "ntp_background": "rgb(8, 33, 15)",
      "popup_border": "rgb(0, 0, 0)",
      "sidebar_border": "rgb(30, 53, 36)",
      "sidebar_highlight": "rgb(16, 140, 78)",
      "sidebar_text": "rgb(255, 255, 255)",
      "sidebar": "rgb(30, 53, 36)",
      "tab_loading": "rgb(8, 33, 15)",
      "tab_selected": "rgb(22, 70, 35)",
      "tab_text": "rgb(102, 255, 0)",
      "toolbar_vertical_separator": "rgb(0, 194, 97)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{13cec13b-13eb-42d2-912a-26b861611532}"
    }
  }
}