First read the unflagged dots as ordinary observed values: 5, 3, 6, 8, 7.
Then compare the flagged view. The final dot still has value 7; the latest label only tells you which point is newest.
A tiny EDA readout: draw every pinned point, then flag the latest observation without changing the underlying values.
highlighted = computed this step
Pinned series
Start with the pinned time labels and values.
pinned series
All points
Dot marks show every observed point in order.
all points
Latest point flagged
The same dots are shown again, with the latest point explicitly flagged.