I’ve always assumed that it’s because it begins rendering at the creation of the note. So each note is at a different point of the animation.
Discussion
I don't know but I like it, at one point all three had diff colors
I’ve always liked it. nostr:npub1rq9x6sk86e8ccw2cm8gsm4dyz9l24t823elespupaxjnzdk026fsca2r93 created it for me almost a year ago.