Examine source code of REDRRRT

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "REDRRRT",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(55, 28, 28)",
      "toolbar_text": "rgb(241, 127, 127)",
      "frame": "rgb(108, 29, 29)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(111, 74, 74)",
      "toolbar_field_text": "rgb(232, 232, 232)",
      "tab_line": "rgb(227, 62, 62)",
      "popup": "rgb(108, 29, 29)",
      "popup_text": "rgb(255, 255, 255)",
      "tab_loading": "rgb(227, 62, 62)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{eaf66a89-3a66-4ae4-af2f-97a314699c63}"
    }
  }
}