Examine source code of Spellchecker Rumantsch Grischun

{
  "dictionaries": {
    "rm": "dictionaries/rm.dic"
  },
  "version": "2.2.0.260121",
  "browser_specific_settings": {
    "gecko": {
      "id": "rm@dictionaries.addons.mozilla.org"
    }
  },
  "name": "Spellchecker Rumantsch Grischun",
  "manifest_version": 2
}