From daf759ea4a70735b05d69b571942babd94f81fe3 Mon Sep 17 00:00:00 2001
From: raphael <raphael@cloud13.de>
Date: Wed, 3 Jun 2020 16:27:45 +0200
Subject: [PATCH] fix transparent background on saved images

---
 src/js/whiteboard.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/js/whiteboard.js b/src/js/whiteboard.js
index 63c8834..3947455 100644
--- a/src/js/whiteboard.js
+++ b/src/js/whiteboard.js
@@ -1266,9 +1266,11 @@ const whiteboard = {
             }
 
             if (drawBackgroundGrid) {
+                destCtx.globalAlpha = 0.8;
                 var ptrn = destCtx.createPattern(brackGroundImg, "repeat"); // Create a pattern with this image, and set it to "repeat".
                 destCtx.fillStyle = ptrn;
                 destCtx.fillRect(0, 0, copyCanvas.width, copyCanvas.height); // context.fillRect(x, y, width, height);
+                destCtx.globalAlpha = 1;
             }
 
             $.each(_this.imgContainer.find("img"), function () {