[null,null,["최종 업데이트: 2024-07-12(UTC)"],[[["The Playground provides a testing environment to experiment with content display on Google Glass."],["It offers features like image attachment, text display, HTML rendering, menu items, and timeline item management (insert, update, delete)."],["Users need to authorize the Playground using a Google APIs project client ID for it to interact with their Glass data."],["A dedicated client ID for testing purposes is recommended for security."],["The Playground facilitates previewing content and manipulating timeline items directly on Glass."]]],[]]