https://leopard-adc.pepas.com/samplecode/GammaFilterforFxPlugandAE/index.html
Gamma Filter for FxPlug and AE
gamma filterae
https://www.gphyx.com/
gphyx | Precision FxPlug Tools for Final Cut Pro
Precision FxPlug 4 plugins engineered for stability and performance in Final Cut Pro.
final cutprecisiontoolspro