Measurement-report TREND test project — one printer, 10 builds
==============================================================
Generated by Claude for Knut, to exercise the Measurement Report tool's
trend chart and report comparison. Simulates ONE printer (Canon-Pro300-Trend)
profiled 10 times over ~4 months, with drift (ageing inks / instrument)
growing at each build, and DIFFERENT chart sizes and instruments per build.

Layout (the standard ChromIQ project layout)
--------------------------------------------
Printer-trend-project/
  runs/run1 … run10/
    Canon-Pro300-Trend.ti2      the chart
    Canon-Pro300-Trend.ti3      that build's measurement (synthetic, drift grows
                                 with each run — no hardware)
    Canon-Pro300-Trend.tif      the chart page
    reports/report_YYYY-MM-DD….json   the saved measurement report

The 10 builds (dates two weeks apart, 2026-02-03 → 2026-06-09)
-------------------------------------------------------------
run  patches  instrument     mean ΔE00   worst ΔE00   black L*
 1     156    i1Pro            0.06        0.26         9.4
 2     210    ColorMunki+off   0.13        0.51         9.8
 3     156    i1Pro            0.17        0.71        10.1
 4     272    i1Pro            0.28        1.11        10.7
 5     210    ColorMunki+off   0.38        1.46        11.3
 6     156    i1Pro            0.45        1.81        11.8
 7     272    i1Pro            0.58        2.24        12.4
 8     210    ColorMunki+off   0.68        2.53        12.9
 9     156    i1Pro            0.78        2.97        13.6
10     272    i1Pro            0.94        3.49        14.3
("+off" = offset every second column.) The darkest black lightens over time
(L* 9.4 → 14.3) — a plausible ink-fade signature alongside the rising ΔE.

How to see the trend
--------------------
Open the Measurement Report tool (Tools menu), load ANY of the ten .ti3 files
(e.g. runs/run5/Canon-Pro300-Trend.ti3). The tool gathers every saved report
of this printer across all runs and shows the trend chart at the top —
average + worst ΔE00 over the ten dates. trend-chart-preview-*.png show what
it looks like (light + dark).

Note: colours are synthetic (a clean render fed back as the measurement with a
growing offset), so the numbers exercise the trend/compare logic — they are not
real colorimetry.
