Examine source code of Find tab

{
  "description": "Find and navigate to the tab you need",
  "homepage_url": "https://www.github.com/JDuchniewicz/find-tab",
  "manifest_version": 2,
  "name": "Find tab",
  "permissions": [
    "find",
    "tabs"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "32": "search.svg"
  },
  "browser_action": {
    "browser_style": true,
    "default_title": "Find tab",
    "default_icon": {
      "32": "search.svg"
    }
  },
  "version": "1.1.3",
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "65.0"
    }
  },
  "commands": {
    "toggle-plugin": {
      "suggested_key": {
        "default": "Ctrl+Space"
      },
      "description": "Send a 'toggle-plugin' event to turn it on and off"
    },
    "close-Tab": {
      "suggested_key": {
        "default": "Ctrl+E"
      },
      "description": "Send a 'close-Tab' event to close the currently selected tab"
    },
    "toggle-search-mode": {
      "suggested_key": {
        "default": "Ctrl+Shift+Space"
      },
      "description": "Send a 'toggle-search-mode' event to alter between searching through all windows and the last window"
    }
  }
}