The skybox is what surround the sandtray in the environment, i.e. the sky. They can be changed by the user to reflect and modify the mood of their sandtray design.
They can be changed by the user to reflect and modify the mood of their sandtray design. A user can add a light and airy mood by choosing an appropriate skybox. The user could also choose a dark and gloomy design.
Examples of skyboxes
The mystic example tray screenshot slideshow demonstrates the effects that changing a skybox can have on a given sandtray design. You can also see a few examples of skyboxes in the screenshot gallery. The demo models also show various skyboxes.
Ten skyboxes are contained in the standard purchase. Additional skyboxes can be obtained by purchasing add on packs through in-app purchases. There are currently over 120 skyboxes available in total.