I'll go further as an example, perhaps?

Glass/icy eyes are universally attractive. Even if it isn't the oreference in someone. You can't help but look at them. The human eye is already an amazing thing on it's own. But in glass/ice? It seems like a portal. But these type usually have no depth. I won't definitively say anything on that other than I don't know if it's because the owners of glass/icy blue eyes realize the universal nature of their appeal and trend/focus themselves on being appealing visually as their fortee as a result, or these shallow people just tend to have icy blue eyes. Chicken and egg.

Ocean/sky blue? Like myself and Stella (from what I gather through the AI) ... there is a depth there. And low and behold - we both have something to say.

Not saying people with deoth to the blue eyes 100% have depth as a character/human. But generally, these trends find me or I find them.

Same goes for brown. There are deoth measurements In the richness of the brown. There are sublayers, rootbeerish in colour.

Green/hazel? Same. Except one thing I have noticed....

Murky green, lagoon green eyes - generally are the portal to a chameleon in character. Dark triad traits.

Stella knows why I know this ;)