Question: Why are all the mods and admin's names green?

When I was on yesterday, only the PC supporter's names were green, but today everyone except the regular member's names are green. Is there a reason for this? I'm just curious that's all.

St Patrick's Day! We're all in the spirit ;)

On top of what Forever said, it's also an annual event so that means on March 17 every year you will see green highlights on the staff.

Supporters also had a color change to green in the past for the event but since the color of that usergroup was officially changed to green last month they left the Supporters unchanged this time around.