Just watch next few days, if those leaves stay light and the veins keep getting darker you may have beginning of magnesium deficiency. New growth is lighter as @Brandon said so watch a couple days before changing anything.
@hpsgrower 6.3 is good in soil. What week are you in, what are you feeding and how much? Are you using cal-mag? You just transplanted, did the root ball break apart? Can you get a run off ppm?
Just watch next few days, if those leaves stay light and the veins keep getting darker you may have beginning of magnesium deficiency. New growth is lighter as @Brandon said so watch a couple days before changing anything.
Looks good to me new growth is normal lighter