The colour and the gruesome images[0] didn't faze me at all, I was addicted to what was inside, so the package was just an aside, although I did prefer the "smoking will harm your unborn baby" packaging because I'm not pregnant, and it had a cute baby on it. I hope it would make smoking less glamorous for teenagers, but I've no idea if there's research on that.

[0]https://i.redd.it/np95errspxb41.jpg