Your metrics are set like a galley proof: fine serif type, wide margins, line numbers. Pulse is the proofreader with a coral pen — it strikes the wrong figure, writes the right one above it and leaves a margin note — and a human initials the change in teal.
Type sets itself line by line, left → right. On beat 1 of bar 3 the pen strikes "check" and writes "open" above it; the circle around "Friday." closes exactly on the last downbeat before the drop.
On the drop "Acme Pulse" sets in one hit, left → right. The pen's double underline sweeps under "Pulse" on the next beat, "stet" lands in the margin, and the teal sign-off writes itself on beat 1 of the following bar.
The table sets row by row; four rows pass untouched. On the downbeat the pen strikes "3.1 %", writes "2.5 %" above it and pulls a leader to the margin note "−18% since 09:42, after deploy #2231"; the human circles "Roll back" and the teal initials land on the next bar.
Acme PulseThe headline sets clean, then the pen circles "before" on the downbeat. The lockup slides up 20 px, the hand-drawn arrow strokes toward "Start free" and the button fills coral on the final hit.
A red pen on a proof is the most exact picture of "review": the machine points at the mistake, the person decides and signs. It stays calm, editorial and very readable in a square. Risk: too many marks become chaos — cap it at three per shot and keep the page mostly clean.
Adapt to your product: typeset your own table (orders, test results, KPIs, contract terms) and let the pen correct one figure; the initials box is where your product's approve / reject action lives.
References: Reedsy — proofreading marks