Focal Point Debug
fp-debug
When set to true, this places a crosshair overlay on the image that identifies where the focal point of the image is set.
To use debug mode, fit=crop and crop=focalpoint must also be set.
fp-x=.825&fp-y=.35&fp-z=1.5&fp-debug=true
fp-x=.12&fp-y=.55&fp-z=1.5&fp-debug=true