The Tebako logo indicates that there is something precious to be safekept within the container. The container is lightweight that is made of light and a thin curtain of water. While it is lightweight, it is self-contained and protects what is inside, such that the external waves cannot enter it.
What is stored inside could be Ruby code, or something else (blue, Python?).
Prompt that generated the red cube.
On Ideogram:
In the middle of the ocean at midnight with strong waves there is a futuristic
transparent rectangular cube with edges lined with strong red curved glowing
light floating in the sky, it has rounded corners and rotated that one corner
points up to the sky. The cube uses reverse gravity to push out the waves below
and around it causing an invisible barrier that water cannot enter. The cube's
faces are made of a layer of heavy water created by the glowing edges so there
are strange refractions inside the box. Inside the box there is a single Ruby
gem (red), floating in the middle of the cube, its red light illuminates the
waves.Blue cube:
In the middle of the ocean at midnight with strong waves there is a futuristic
transparent rectangular cube with edges lined with strong blue curved glowing
light floating in the sky, it has rounded corners and rotated that one corner
points up to the sky. The cube uses reverse gravity to push out the waves below
and around it causing an invisible barrier that water cannot enter. The cube's
faces are made of a layer of heavy water created by the glowing edges so there
are strange refractions inside the box. Inside the box there is a single
Sapphire gem (blue), floating in the middle of the cube, its blue light
illuminates the waves.