Paigesion

I use them for a couple things depending on my mood and how I am playing the game. When I am playing fast paced not bothering to name creatures just playing to play with no attachment to the nichelings I use them to mark "disabilities". This meaning,, I identify the three worst traits in my tribe at that moment and I give each creature that has on of those traits a red gem for each one. If a creature has one or no red gems they can breed and if they have two or more red gems they cannot unless absolutely necessary. Once my nichelings reach a point where their genes are no longer heavily affected by the original three I reset gems back to green and pick three more genes I do not want and remark creatures according to what genes they have proceeding with the 1 or less can breed 2 or more cannot. When I am playing with attachment to my creatures/building a small story around them I use colors to mark breeding pairs leaving one color for the non breeders. This allows me to remember their "mates" and reminds me of who has genes I don't want...It makes for less straightforward genetics, but it's nice to have dedicated couples in the game sometimes.

If you're in the family tree there is a way to narrow a search of your creatures by a certain gene already. There is also the ability to change the gems of your creatures therefore "flagging" them. These are both fine and work well enough in my opinion. Though a literal way to flag some creatures and maybe take away their ability to breed so that you don't accidentally miss click would be nice, its also a little unnecessary and I would rather see effort put into cool new features. As for the are you sure you want to end the day button, that sounds great

I would absolutely love this feature. Ever since the full release came out, with genes that get unlocked by time spent in game world, I've been dying to know what day it was on my little niche islands... love the idea of it being in the sun at the top