There is no real tradition of Halloween here. Just some kids trick or treating but not everywhere and those adults who like dressing up in horror costumes and having a reason to party. It came with the popularity of American movies and of course shops trying to make profit by selling Halloween stuff. And the Kindergarten used it as a more attractive festivity than all hallows day or harvest festival. So I am guessing it has gradually become some sort of new tradition among those families with children in the last 15 to 20 years.
And personally I like the horror theme more than our own tradition of Fasching in February. And one gets to do some art with all those pumpkins so one doesn't have to eat them all, lol. My grandmother always made pickled pumpkin, which we had to eat all winter. Yuck. Along with other pickled vegetables she grew in her garden.

I am grateful to be born in the age of global trade, so we don't have to make food durable for winter time any more. Now I just go to the supermarket, buy whatever relatively fresh stuff is there and if I like I can grow my own stuff, but am not dependent on the survival of my own crops.

Sorry for the double post.

About the colours of food. I have learned of an experiment that if you for example put a blue light on, all food looks disgusting. But the same food under yellow light looks really delicious.
There are a lot of shops who use certain wavelengths of light to make their products look more attractive. Not only grocery stores but also for example clothing shops.

As to how many more star born there are, I imagine there are hundreds just because a lot of babies are born at those times.  However very few have magical or potential for magical talent.. Though it could be that many of the world's most powerful leaders are indeed star born in their charisma.