diff --git a/web/assets/images/bg.jpg b/web/assets/images/bg.jpg
deleted file mode 100644
index 4e33a79ce1..0000000000
Binary files a/web/assets/images/bg.jpg and /dev/null differ
diff --git a/web/assets/images/bg.png b/web/assets/images/bg.png
new file mode 100644
index 0000000000..91f335913d
Binary files /dev/null and b/web/assets/images/bg.png differ
diff --git a/web/assets/style.css b/web/assets/style.css
index 04e7a17697..b74cbc486d 100644
--- a/web/assets/style.css
+++ b/web/assets/style.css
@@ -8,7 +8,7 @@ body {
 	min-width:1030px;
 	margin:0;
 	font:13pt "arial";
-	background:#152534 url("images/bg.jpg") no-repeat center top; 
+	background:#152534 url("images/bg.png") no-repeat center top; 
 	color:rgba(0,0,0,.8); }
 
 pre {
@@ -555,4 +555,4 @@ pre .end { background:url("images/tabEnd.png") no-repeat left bottom; }
 #body table.docutils {
     border-collapse: collapse;
     text-align: left;
-    border-spacing: 0px; }
\ No newline at end of file
+    border-spacing: 0px; }