Examine source code of Luma Search

{
  "manifest_version": 2,
  "name": "Luma Search",
  "description": "Quickly reset your Firefox search to Yahoo with Luma Search—fast, reliable results via lumasearch.co.",
  "version": "1.0.0",
  "chrome_settings_overrides": {
    "search_provider": {
      "name": "Luma Search",
      "keyword": "LumaSearch",
      "favicon_url": "https://lumasearch.co/favicon.png",
      "search_url": "https://search.yahoo.com/search?q={searchTerms}",
      "suggest_url": "https://search.yahoo.com/sugg/ie?output=fxjson&command={searchTerms}&nResults=10",
      "encoding": "UTF-8",
      "is_default": true
    }
  },
  "browser_action": {
    "browser_style": true,
    "default_icon": {
      "48": "images/icon48.png"
    },
    "default_title": "Luma Search"
  },
  "icons": {
    "48": "images/icon48.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "contextMenus"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{c083092b-a746-4b7e-9764-f8dc989db338}"
    }
  }
}