diff --git a/doc/logo-header.svg b/doc/logo-header.svg
index 17830b84..b29b2e7f 100644
--- a/doc/logo-header.svg
+++ b/doc/logo-header.svg
@@ -45,7 +45,7 @@
    showguides="true"
    inkscape:guide-bbox="true" />
     <rect
-   style="opacity:1;fill:#f2f2f2;fill-opacity:1;fill-rule:evenodd;stroke:none;stroke-width:0.14294769px;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;marker:none"
+   style="opacity:0.5;fill:#e5e5e5;fill-opacity:1;fill-rule:evenodd;stroke:none;stroke-width:0.14294769px;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;marker:none"
    id="rect1929"
    width="1000"
    height="286.64285"