Examine source code of YouCare

{
  "manifest_version": 2,
  "name": "YouCare",
  "short_name": "YouCare",
  "description": "YouCare, the search engine that transforms your searches into good deeds.",
  "version": "4.5.15",
  "default_locale": "en",
  "icons": {
    "16": "icons/16.png",
    "24": "icons/24.png",
    "32": "icons/32.png",
    "48": "icons/48.png",
    "128": "icons/128.png"
  },
  "browser_action": {
    "default_icon": {
      "16": "icons/16.png",
      "24": "icons/24.png",
      "32": "icons/32.png",
      "48": "icons/48.png",
      "128": "icons/128.png"
    },
    "default_title": "YouCare"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "chrome_settings_overrides": {
    "search_provider": {
      "encoding": "UTF-8",
      "favicon_url": "https://youcare.world/static/images/favicon/favicon.ico",
      "is_default": true,
      "keyword": "youcare",
      "name": "YouCare",
      "search_url": "https://youcare.world/all?e&q={searchTerms}",
      "suggest_url": "https://youcare.world/api/v2/search/suggestions?q={searchTerms}&m=__MSG_market__"
    }
  },
  "homepage_url": "https://youcare.world",
  "permissions": [
    "https://youcare.world/*"
  ],
  "web_accessible_resources": [
    "background.js"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{8cacfa88-1fa9-497c-9c9e-717e18d2b1e6}"
    }
  }
}