A translucent or black "boomerang" or "flying v" shaped craft moved rapidly away from a fireworks display.

I consider myself a fairly knowledgeable UFO hunter and fully disclose I was actively hoping to see one. However, in my entire life, this would be the first time I believe I saw one. I wrote down my report with a basic sketch immediately that night as to not forget the precise details. It is as follows:
June 17 10:40PM DUBOIS, PA
Object was seemingly translucent. Made visible by firework haze and lights from fireworks. Seemingly popped out of nowhere and shot off in a trajectory that was quickly obscured by neighboring house. Experience was maybe a second long. High certainty of vision at the moment.
---Current Additional Notes---
The object was most definitely a classic boomerang shape. In hindsight the object may have been black just as well. Against the night sky it could seem translucent. I was intentionally watching other parts of the sky rather than the fireworks display. The space I was observing was where it became visible. I had a straight perfect view of it. It was almost as if you could see the haze from the fireworks being navigated through by an object that was low visibility. It moved with remarkable speed and steadiness. As if turbulence or atmosphere have no effect on movement. No light associated with event. No obvious sound associated with event.