Every app has a JSON-formatted manifest file, named manifest.json, that provides important information.
Field summary
The following code shows the supported manifest fields for Apps, with links to the page that discusses each field.
{ // Required "app": { "background": { // Optional "scripts": ["background.js"] } }, "manifest_version": 2, "name": "My App", "version": "versionString", // Recommended "default_locale": "en", "description": "A plain text description", "icons": {...}, // Optional "action_handlers": ["new_note"], "author": ..., "automation": ..., "bluetooth": { "uuids": ["1105", "1006"] }, "commands": {...}, "cross_origin_embedder_policy": { "value": "require-corp" }, "cross_origin_opener_policy": { "value": "same-origin" }, "current_locale": ..., "differential_fingerprint": ..., "event_rules": [{...}], "externally_connectable": { "matches": ["*://*.example.com/*"] }, "file_handlers": {...}, "file_system_provider_capabilities": { "configurable": true, "multiple_mounts": true, "source": "network" }, "import": [{"id": "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"}], "key": "publicKey", "kiosk": { "always_update": ..., "required_platform_version": ... }, "kiosk_enabled": true, "kiosk_only": true, "kiosk_secondary_apps": ..., "minimum_chrome_version": "versionString", "nacl_modules": [...], "oauth2": ..., "offline_enabled": true, "optional_permissions": ["tabs"], "permissions": ["tabs"], "platforms": ..., "replacement_android_app": ..., "replacement_web_app": ..., "requirements": {...}, "sandbox": [...], "short_name": "Short Name", "sockets": { "tcp": { "connect": "*" }, "udp": { "send": "*" } }, "storage": { "managed_schema": "schema.json" }, "system_indicator": ..., "update_url": "http://path/to/updateInfo.xml", "url_handlers": {...}, "usb_printers": { "filters": [...] }, "version_name": "aString", "webview": {...} }