demo · v136
Dark-mode print
The classic motivating example for print-color-adjust: exact: a dark-mode boarding pass or ticket where the dark background and bright status badges are load-bearing. Without the override, browsers strip the background to save ink and the page goes white — ID barcodes and status colors vanish. Click "Print preview" to see both versions side by side.
Probing…
print-color-adjust: economy (default)
boarding pass — economy mode
LON → NYC
GATE 42 — BOARDING NOW
seat 14C
CHECKED IN ✓
.page { print-color-adjust: economy; }
print-color-adjust: exact
boarding pass — exact mode
LON → NYC
GATE 42 — BOARDING NOW
seat 14C
CHECKED IN ✓
.page { print-color-adjust: exact; }
why this angle
The sibling concept toggles the property. This concept is the canonical real-world use: dark-mode tickets that depend on background color to convey state. Hit print preview — the "economy" pass goes white and loses the status badges; the "exact" pass keeps every pixel.