Ay, mahirap talaga intindihin ang kulay ng poop ng baby sa una, lalo na pag first time mom ka pa lang! Based sa link mo, dapat may guide dyan about what's normal, usually yellow or brown poop is okay, pero kung green or may blood, that's when kailangan mo ng doctor na talaga. One of my mum friends got so worried sa greenish poop ng baby niya, pero sabi ng pedia normal lang dahil sa feeding issues, so check with your pediatrician kung concerned ka since bawat baby naman ay different.