I was playing with the Custom FX. When I test the following, it locks to the upper left corner of the page (vs underneath the point where I am clicking my mouse). { "angle": 0, "duration": -1, "angleRandom": 360, "emissionRate": 2, "endColour": [0, 0, 0, 1], "endColourRandom": [10, 10, 5, 0], "gravity": [0.01, 0.01], "lifeSpan": 60, "lifeSpanRandom": 0, "maxParticles": 200, "sharpness": 55, "sharpnessRandom": 40, "size": 260, "sizeRandom": 0, "speed": 0, "speedRandom": 0, "startColour": [10, 10, 50, 0], "startColourRandom": [10, 10, 10, 0] } Thoughts?