diff --git a/_ext/svg/adjust.svg b/_ext/svg/adjust.svg
new file mode 100644
index 0000000..d4602ef
--- /dev/null
+++ b/_ext/svg/adjust.svg
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="iso-8859-1"?>
+<!-- Generator: Adobe Illustrator 19.0.0, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" id="Capa_1" x="0px" y="0px" viewBox="0 0 512 512" style="enable-background:new 0 0 512 512;" xml:space="preserve" width="512px" height="512px">
+<g>
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+</svg>