Create a vignette to darken the edges of your frame — it draws focus to the center and adds a cinematic, polished look.
Steps to create a vignette effect
Add CC Vignette effect to your layer or adjustment layer. Go to Effect → Stylize → CC Vignette. The effect applies instantly with default settings.

Adjust the Amount slider to control how dark the vignette gets. Higher values create a darker edge; lower values are more subtle. Find the sweet spot where the vignette enhances your shot without looking too heavy.

Adjust the Angle of View to control how far the darkening extends from the edges. A wider angle keeps more of the center bright; a narrower angle brings the vignette closer to the center. Tweak it until the focus feels natural.

One more thing
If you need vignette presets and more complex effects, check The Ultimate Motion Bundle. It includes dozens of ready-made vignette styles and lighting effects you can apply in seconds.
Related how-tos
How to add adjustment layers in After Effects
How to add a shadow in After Effects
How to create a lower third animation in After Effects
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