Draw a heart, from today to the end of the year

[vyncint]

Replaces the VYNCINT plan, which cannot be finished — five days inside the letters are already lit and nothing takes a contribution away, so it has been reporting holed for months (#3). Rather than shift start-week by one and leave four holes instead of five, this starts again on ground that is still clean: a picture covering only days that have not happened yet.

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picture	heart.art — 7 rows × 13 columns
runs	Sunday 23 August → 21 November
cost	56 days × 37 = 2,072 contributions
first work	Monday 31 August
verdict today	reachable, no holes

Today is a Sunday and sits exactly on calendar column 34, so the picture starts on a column boundary with no partial week at the front. It finishes on 11 November with fifty days of slack — a plan that lands on 31 December has no room for a week of illness.

Two shades, not five

Arithmetic rather than taste. Every adjacent pair of GitHub's greens is 9–20 ΔE apart in the worst palette it ships, so a picture using all five puts near-identical shades beside each other however carefully it is drawn. Level 0 against level 2 is ΔE 50 — unmistakable.

It is also what makes this affordable. This graph's 2026 peak is 137, so a level-4 day costs 110 contributions and a level-2 day costs 37. The same heart in bright green would owe about 4,500 rather than 2,072 — four times this account's existing daily pace instead of roughly matching it.

On the measurement

I measured against the graph as it stands today, not against art/vyncint-2026.json in the mossaic repo. That fixture carries contributions for dates that have not arrived — measuring a forward-looking plan against it reported 15 holes that cannot exist. Zeroing everything after today gives the real answer: clean.

Mechanics

matrix: is a path in this repository, so the workflow now checks out the repo before running — the action says so explicitly if you forget. background and top are gone: both place letters on rows and shade the field behind them, and a picture names its own shade for every day, so mossaic-art refuses them rather than ignoring them.

Verified end to end with the published mossaic 0.6.0 binary, using exactly the arguments the action builds.