Should the key background of special effects be dark green or light green? What kind of cloth do you use?

Light green (depending on what you want to shoot or do)

There are two kinds of fabrics:

1. Keying cloth

Used in movies and TV series, the software can cut out the colors of cloth (usually blue and green), which can be synthesized and special effects more easily.

2. Pure cotton background cloth

The camera room is used for photography, which is cheap and durable.