diff --git a/doc/headers.png b/doc/headers.png
index 8e52c20..8c062fb 100644
Binary files a/doc/headers.png and b/doc/headers.png differ
diff --git a/doc/headers.svg b/doc/headers.svg
index 5df79a1..6199d12 100644
--- a/doc/headers.svg
+++ b/doc/headers.svg
@@ -27,9 +27,9 @@
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      inkscape:document-units="mm"
      showgrid="false"
-     inkscape:zoom="1.3719136"
-     inkscape:cx="500.39594"
-     inkscape:cy="231.06411"
+     inkscape:zoom="0.97008941"
+     inkscape:cx="558.19597"
+     inkscape:cy="363.88398"
      inkscape:window-width="1920"
      inkscape:window-height="979"
      inkscape:window-x="0"
@@ -257,6 +257,16 @@
      inkscape:label="Layer 1"
      inkscape:groupmode="layer"
      id="layer1">
+    <rect
+       style="fill:#ffffff;fill-opacity:1;stroke:#000000;stroke-width:0.161779;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:none;stroke-opacity:1"
+       id="rect13521-3"
+       width="161.4944"
+       height="68.120209"
+       x="27.111593"
+       y="30.975336"
+       inkscape:export-filename="headers.png"
+       inkscape:export-xdpi="200"
+       inkscape:export-ydpi="200" />
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@@ -1097,13 +1107,6 @@
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          x="169.36992"
          y="57.440353">Data I/O</tspan></text>
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-       width="170.6443"
-       height="71.961319"
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