8 templates
Calendar Heatmap templates
Native GitHub-contributions-style calendar heatmap. Give a year and `YYYY-MM-DD value` rows; days render as a 7×53 grid shaded by value with month and weekday labels and a legend. Ideal for activity, habits and daily time-series.
Commit Activity (Calendar Heatmap)
Daily commit counts across a year.
Operations & OpsWorkout Streak (Calendar Heatmap)
Training days through the year.
Custom / SVGDaily Orders (Calendar Heatmap)
Order volume by day with seasonal peaks.
Data & SchemaOn-Call Pages per Day — Payments SRE Rota, 2025
Every page that woke the payments platform's primary on-call engineer in 2025: 569 pages over 252 days, with release days (Tuesday and Thursday) visibly darker, the ledger-migration incident week in mid-March peaking at 8 pages on Monday 17 March, the Black Friday surge and the quiet of the December change freeze. Illustrative values.
Operations & OpsDaily Rainfall — Upland Weather Station, 2025 (mm)
A year of 09:00–09:00 rain-gauge totals from an upland station: 1,078 mm across 200 wet days, wetter from October to February, and the October named storm standing out as the wettest day at 61.4 mm. Shading is relative to that storm day, so most ordinary wet days sit in the lighter bands. Illustrative values.
Geo & SpatialRandomisations per Day — Multicentre Trial Recruitment, 2025
Daily randomisations into a fictional multicentre trial as sites open through the year: 398 participants in 2025, 119 in the first half and 279 in the second, with no randomisation at weekends, on the eight English bank holidays or over the Christmas closure. The thickening of the grid from spring onward is site activation, not seasonality. Illustrative values.
Research & AcademicRooftop Solar PV — Daily Generation, 4.2 kWp Array, 2025
Daily inverter yield from a 4.2 kWp south-facing domestic array in southern England: 2,648 kWh for the year (about 630 kWh per kWp), June delivering 341 kWh against December's 57, and the best day 19.2 kWh on Wednesday 25 June. The seasonal sweep is the sun's elevation; the day-to-day speckle is cloud. Illustrative values.
Scientific PlotsProduction Deployments per Day — DORA Deployment Frequency, 2025
Every production deployment a product engineering group shipped in 2025 — 1,580 in all, rising from 331 in Q1 to 401 in Q4 as the pipeline sped up — with lighter Fridays by policy, 2 weekend hotfix days, and an empty fortnight for the year-end change freeze. The kind of evidence a DORA "elite" claim should rest on. Illustrative values.
Lean & Flow