The effect is too strong. You’ll reduce the opacity of the layer that contains the effect.
6. With the top layer selected, press the T key to reveal the Opacity property for the layer.
Change its value to 30%.Adding a vignette
You’ll use a new solid layer to create a vignette for the movie.
1. Choose Layer > New > Solid.
2. In the Solid Settings dialog box, do the following:
Name the layer Vignette.
Click the Make Comp Size button.
Change the color to black (R= 0 , G= 0 , B= 0 ).
Click OK.