Examine source code of DeepL Text Translate

{
  "manifest_version": 2,
  "name": "DeepL Text Translate",
  "version": "1.0",
  "description": "Translate selected text via DeepL using context menu. Set default languages in the settings.",
  "permissions": [
    "contextMenus",
    "storage",
    "tabs"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": false
  },
  "icons": {
    "64": "icon64.png",
    "128": "icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e219c056-49b4-469d-917c-3fa32d73c2a8}",
      "strict_min_version": "105.0"
    }
  }
}