White eye-ring turning yellow?

[ja3x3]

I have a 2 year old Cinnamon Green Cheek. I've had her almost a year now. This morning I noticed that the white around her eye seems to be slightly yellow in a few spots. It's on both, but more around her left eye than her right. She seems fine and is not exhibiting any odd behavior. Is this anything to be concerned about? She's the first bird I've ever had so any advice from those more experienced than me would be greatly appreciated. Thanks!

 

[MonicaMc]

She might be eating a lot of vitamin A foods? (although it really shouldn't change the color of her skin) Maybe it's dye from toys or food? Might even say it's bruising, as that does turn the skin a funky color, but I would hazard not.