Android has long enforced permissions for applications accessing calendar data, and Google Calendar is enhancing user control over data sharing. A recent APK teardown indicates that Google is developing a new toggle in Calendar settings to allow users to control whether their Google Calendar data is shared with other applications. When this option is disabled, third-party calendar apps cannot access Google Calendar entries. Additionally, Google Calendar is experimenting with a new font called Google Sans Flex, which features heavier lines with rounded ends.