Examine source code of Gruvmoose

{
  "manifest_version": 2,
  "version": "1.1",
  "name": "Gruvmoose",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(50, 48, 47)",
      "toolbar_text": "rgb(251, 241, 199)",
      "frame": "rgb(40, 40, 40)",
      "tab_background_text": "rgb(124, 111, 100)",
      "toolbar_field": "rgba(40, 40, 40, 0)",
      "toolbar_field_text": "rgb(251, 241, 199)",
      "tab_line": "rgb(60, 56, 54)",
      "popup": "rgb(50, 48, 47)",
      "popup_text": "rgb(251, 241, 199)",
      "button_background_active": "rgb(80, 73, 69)",
      "icons_attention": "rgb(214, 93, 14)",
      "icons": "rgb(242, 229, 188)",
      "ntp_background": "rgb(50, 48, 47)",
      "ntp_text": "rgb(242, 229, 188)",
      "sidebar_border": "rgba(255, 85, 0, 0)",
      "sidebar_highlight": "rgba(204, 82, 25, 0.34)",
      "sidebar_text": "rgb(242, 229, 188)",
      "sidebar": "rgb(50, 48, 47)",
      "tab_text": "rgb(251, 241, 199)",
      "toolbar_bottom_separator": "rgb(50, 48, 47)",
      "toolbar_field_border_focus": "rgb(214, 93, 14)",
      "toolbar_field_border": "rgb(50, 48, 47)",
      "toolbar_field_focus": "rgb(50, 48, 47)",
      "toolbar_field_highlight": "rgba(255, 116, 25, 0.53)",
      "toolbar_top_separator": "rgb(60, 56, 54)",
      "tab_loading": "rgb(60, 56, 54)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{485422d1-3789-4b26-b046-ee31680e6bca}"
    }
  }
}