How much of a light leak is to much?

I just got my new flower chamber set up, tried my hardest to eliminate all light leaks and the only thing I'm having trouble with is the small light leak coming from the inside of the vented hoods that are exhausted outside the window. I put a dryer vent with the flaps that close but theres still a bit of light coming through. Will this affect my plants? See picture.

the way I was taught is if your can hold out your hand full extension, wiggly your fingers next to your plant obviously, And then if you can see the fingers move it’s too bright.

You'll be fine. I'm in and out of my rooms constantly. Bottom passive vents always open. No issues. People are a bit overly cautious about light @ night I believe.
If it's no brighter than a full moon, you're good.

Thanks guys, just needed to put my mind at ease.. lol Tend to over think these things haha This is the first time I've had a light leak so was just being pre cautious before flowering these girls. (The window tarp has been replaced with a sheet of plywood and exhaust cut to fit.)