u/Dramatic-Island2702

I always wondered what this is, and (if it's functional) why manufacturers would choose that orientation instead of the more inviting upside down curve and make it look like a smile.

I feel like there has to be a reason for those two dots being there specifically, maybe to anchor in place the mechanism for the "frown"? This is the clearest picture I could find but it looks like the curve might be showing the day of the month, very curious about this. Thanks!

(I hope I tagged this right, also if it's been answered already I apologize, I searched the sub but couldn't find anything)