Hi,
You should have received an email to the address registered on your developer account. If you've checked your spam etc, I'm not sure what happened there.
Looking at your item - it seems like it was rejected for using the `windows` permission. I was going to say this wasn't a valid permission, but taking a look, it seems we do actually support that as an alias for `tabs`. Today I learned!
Longer term, I'd suggest switching that out for `tabs` if you can - while both work, and do the same thing, `tabs` is the more canonical way to do this.
Thanks,