In the computer world, "Easter Eggs" are software features that don't serve a real purpose other than whimsy or amusement. Palm OS has several of these Easter Eggs, including the famous taxi that drives across the screen at random. To enable these features, the user has to activate Easter egg mode by going into the "General" preference panel and drawing a counter-clockwise circle at the bottom-right of the screen. On devices where the licensee has replaced the "General" panel, this function is usually assumed by another preference panel; for example, on the PalmOne Tungsten C you follow this same procedure while using the "Power" panel.
Third-party applications should honor this setting to enable their own enhanced functionality.
The standard system preference for this is prefAllowEasterEggs (see Preference.h). This
setting can be accessed using the PrefGetPreference API:
UInt32 enableEasterEggs = PrefGetPreference(prefAllowEasterEggs);
The value will be non-zero when the user has requested that Easter eggs be available.