After Posting font colours difrent??

Hi all.. Man ap sb say yah janna chahta hon k poting krny k bad yah thread creat krny k bad kuch posts font colour dark blue ho jata ha aur kuch ka light blue. Is ki kiya waja ha. Kiya yah colour posting ka valid or invalid hona btaty han yah koi aur reason ha. Jasy man nay kisi thread ka answer diya ha to ay ga k for exm. "ABC said " yah dark blue man ata ha kbi li8 blue man. Iski reason plz???

gee bhai mujhe is bat ka to pta nhe he aur hmein apne posting krne hote he aur font ke color se hmein koi msla nhe he aur hm apne forum mein acha posting kia krein aur apne trading mein bhtr kam krein phr hmein apne forex trading mein success hote he