Examine source code of Krita graphics editor

{
  "manifest_version": 3,
  "name": "__MSG_title__",
  "version": "1.1.5",
  "description": "__MSG_description__",
  "default_locale": "en",
  "options_page": "set.html",
  "action": {
    "default_popup": "go.html",
    "default_icon": "draw/i_38.png"
  },
  "icons": {
    "16": "draw/i_16.png",
    "48": "draw/i_48.png",
    "128": "draw/i_128.png"
  },
  "background": {
    "scripts": [
      "runapps.js"
    ]
  },
  "permissions": [
    "storage",
    "webNavigation"
  ],
  "host_permissions": [
    "https://*/*",
    "http://*/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{12a41a29-45d1-447c-90a1-a34566a211ca}"
    }
  }
}