The Vignette FX Controller.

This FX controller manages the vignette effect for a Game Object.

The vignette effect is a visual technique where the edges of the screen, or a Game Object, gradually darken or blur, creating a frame-like appearance. This effect is used to draw the player's focus towards the central action or subject, enhance immersion, and provide a cinematic or artistic quality to the game's visuals.

A Vignette effect is added to a Game Object via the FX component:

const sprite = this.add.sprite();

sprite.preFX.addVignette();
sprite.postFX.addVignette();