anyone know the tip on how to use the vignette effect thanks?

anyone know the tip on how to use the vignette effect thanks?

You will need to open one of the secondary rooms, activate the vignette, and shaping the vignette
in the geometry room. Then, you will come back to the secondary room to grade either inside
of the vignette or outside of it.

If my explanation is not good enough, click on the help tab in Color. The manual is pretty
well-written.

Have fun!