From 6b38f5be8ea2a9a897771d6acdb1c31472b6a068 Mon Sep 17 00:00:00 2001
From: Christopher Lates <christopherlates@gmail.com>
Date: Tue, 26 May 2026 18:48:51 -0400
Subject: [PATCH] fix: preserve day-color backgrounds when printing worksheets

Browsers strip background colors/images by default when printing.
Adding print-color-adjust: exact forces the day palette accents to
render on paper and in PDF export.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 src/worksheet_html_renderer.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/worksheet_html_renderer.py b/src/worksheet_html_renderer.py
index e982ec1..a00cde4 100644
--- a/src/worksheet_html_renderer.py
+++ b/src/worksheet_html_renderer.py
@@ -79,6 +79,7 @@ def get_day_palette(day_label: str) -> tuple[str, str]:
   @media print {
     body { background: white; padding: 0; }
     .page { padding: 0; box-shadow: none; margin: 0; }
+    * { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
   }
 
   /* Day header bar */