Grid Tray

Grid tray, a thin frosted glass panel 0.005 m thick, 0.03 m corners, thin bright rim; columns (2-6) and rows (1-5) set 0.08 m pitch cells, the panel sized to fit, each cell open room for a kit icon or decal; active picks a cell.

风格：low-poly, flat-shaded vertex colors, no textures, 3 materials: the shared opaque one plus a distinct surface (glass, water or chrome), which stays its own mesh through mergeAssets rather than merging into the rest; shares palette and scale with its kit