Built-in chromaKey, PIXI's stock BlurFilter + ColorMatrixFilter, and a
couple of community pixi-filters via
type: 'custom'. Every filter parameter you can see animating is reached by a
'filters.<name>.<prop>' keyframe path.
{ type: 'chromaKey' } — animatable threshold, smoothing, spillFilter instance via { type: 'custom', filter: new XxxFilter() }colorMatrixFilter via ColorMatrixFilter — desaturate, hue rotate, contrast