What are the taboos behind the TV background wall?

The shape of TV background wall. When designing TV background wall, sharp corners and prominent shapes should be avoided. From the perspective of geomantic omen, a rounded arc or rectangle is more conducive to the living room to absorb wealth and fortune. And we can't divide the background wall in disorder, which will affect the family's spirit and make them have nightmares at night, and they can't lift their spirits during work and study during the day.