b/w gradual 3.0

b/w gradual is an iMovie plug-in that converts your clip to black-and-any-color. You can set a color (e.g. yellow), and the plug will convert your clip to a monochrome yellow clip (i.e. it uses only shades of yellow).

b/w gradual is a tool that creates a nice and interesting effect - think sepia tone effect, except you get to pick the color tone.

area of effect :
define the area of the clip you want to be affected by the plug-in. all other parts or the clip remain untouched.

b/w
this determines how much the colors should fade towards black/white.