Dopamine triangle transparent shelf

There are eleven colors in total.
Search for QIHUI (in either uppercase or lowercase) within the game.

There is just one small issue, as shown in the picture:
If placed at the corner formed by two walls, the lighting and color may not be right, but it will be fine at the corner formed by three or four walls.
（Perhaps there are differences in the way light and shadow are calculated in the game?）
You can pay attention to it when placing it.