“…Supplemental Content: Finally, AR is also used to show supplemental content for expressive interaction, such as showing interactive content on robots or background images for their surroundings. Examples include a holographic remote user for remote collaboration and telepresence [197,401], a visual scene for games and entertainment [346,369], an overlaid animation or visual content for shape-changing interfaces [243,258], showing the menu for available actions [27,58], and aided color coding or background for dynamic data physicalization [127,425].…”