Examine source code of Soft Light Brown

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Soft Light Brown",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(211, 211, 211)",
      "toolbar_text": "rgb(22, 26, 29)",
      "frame": "rgb(245, 243, 244)",
      "tab_background_text": "rgb(158, 152, 143)",
      "toolbar_field": "rgb(188, 184, 177)",
      "toolbar_field_text": "rgb(22, 26, 29)",
      "tab_line": "rgb(94, 80, 63)",
      "popup": "rgb(188, 184, 177)",
      "popup_text": "rgb(22, 26, 29)",
      "tab_loading": "rgb(94, 80, 63)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c49c97ec-f259-4105-a84d-8712fb9d7584}"
    }
  }
}