Examine source code of Indian Languages Toolkit

{
  "manifest_version": 2,
  "name": "Indian Languages Keyboard",
  "version": "0.1",
  "description": "Allows to type in all 22 official Indian Languages in Sidebar",
  "icons": {
    "48": "icons/fsmi48.ico",
    "96": "icons/fsmi96.ico"
  },
  "sidebar_action": {
    "default_title": "Indian Languages Keyboard",
    "default_panel": "index.html",
    "default_icon": "icons/fsmi48.ico"
  },
  "permissions": [
    "tabs"
  ],
  "commands": {
    "_execute_sidebar_action": {
      "suggested_key": {
        "default": "Ctrl+Shift+Y"
      }
    }
  }
}