Yellow Highligt After You Submit A Post

abcpeanuts

I notice when I submit a post on this forum, my post flickers yellow a few times once it gets listed. I think this is pretty cool. Is this an add-on, or just something for this forum?

fysicsluvr

YellowFade

abcpeanuts

Thank you Fysisluvr. You are always so helpful and knowledgeable.