• One screen shape: a cube on top, its pieces as tiles below, pale tiles for what could come next.
• The person's own box: always the same square, the same words, placed after the existing pieces. Rows are always full.
• Growth: the cube is the smallest n³ that holds the pieces (1, 8, 27, 64). "The cube grew" shows once.
• Folded corner: a tile with a folded corner has a cube inside.
• Flat then fold: flat means nothing inside yet; folded means there is an inside.
• A dimension belongs to the whole cube: added anywhere, it shows on every piece as "to be discovered".
• Unknowns: pale or dashed, with a "not known yet" group kept when regrouping.
• Leaves that act: when a leaf is an action (Mosaic), it opens a sheet with its name and a way back to the cube.