Screen Color problem topic

My t-mobile Note 2 SGH-T889 has some screen color issues. I flashed it with a custom kitkat rom. But notice that the white color is little different, its like not bright white.
Not sure if this screen shot will captured it but the colors just don't look right. Is it because of the phone is getting old, it has a yellowish tint on it? Do I need to replace the screen or this is the rom issues?

I am using this custom rom
http://forum.xda-developers.com/note...4-4-4-t2895948

Any help will be great.

Thanks

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