Merge pull request #6 from OdyX/qr-always-black

fix: force QR block to have black text

htdocs/core/modules/facture/doc/pdf_swissqr.modules.php

@@ -857,6 +857,7 @@ class pdf_swissqr extends ModelePDFFactures
 				// Add page for the Swiss QR-invoice
                 $pdf->AddPage();
                 $this->_pagehead($pdf, $object, 0, $outputlangs);
+                $pdf->SetTextColor(0, 0, 0);
                 $this->qrinvoice($pdf, $object, $outputlangs);
 
 				$pdf->Close();