The blue color of your lights does make it harder to tell what us going on with your anemone. While it is nice to have some actinic light to make you inverts shine, and it does help if you have a deeper tank, it is important to have good, white light even for your photosynthetic animals. Most of the stuff we are keeping isn't really from the depths where they only get the blue wavelengths. If you look at the typical coral reef it is still very white light.
The blue/yellow color of this LTA is likely due to some amount of bleaching. If you give it good water, plenty of light and LEAVE IT ALONE it will probably recover its zooanthellae and color back up. It may actually be a differently colored individual. In which case you are lucky because they are rare among LTAs.
It actually looks pretty happy for a newly introduced anemone. It is relaxed, and has accepted the porcelain crab. The oral disk, that shows in the pictures is the normal striped pattern. I think that you will find that it will expand more as it settles in. You can feed it a small chunk of fresh fish or shrimp. That is if you can get it past the crab. Don't feed it more than once a week. The process of digesting solid food can actually take energy away from a stressed or bleached anemone.
