diff --git a/extensions/markdown/media/Preview.svg b/extensions/markdown/media/Preview.svg
new file mode 100644
index 0000000000000000000000000000000000000000..000f46386e1d53cf7ca2ddedb7e3393f0ae94a26
--- /dev/null
+++ b/extensions/markdown/media/Preview.svg
@@ -0,0 +1 @@
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diff --git a/extensions/markdown/media/Preview_inverse.svg b/extensions/markdown/media/Preview_inverse.svg
new file mode 100644
index 0000000000000000000000000000000000000000..6b95a3a24742cfb453720efe776cc8c842eb8dc4
--- /dev/null
+++ b/extensions/markdown/media/Preview_inverse.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0.414 0 16 16" enable-background="new 0.414 0 16 16"><path fill="#252626" d="M12.363 4c-.252-2.244-2.139-4-4.449-4-2.481 0-4.5 2.019-4.5 4.5 0 .6.12 1.188.35 1.735l-3.764 3.765 2.414 2.414 3-2.999v6.585h11v-12h-4.051z"/><rect x="12.414" y="10" fill="#C5C5C5" width="1" height="3"/><rect x="10.414" y="11" fill="#C5C5C5" width="1" height="2"/><rect x="8.414" y="12" fill="#C5C5C5" width="1" height="1"/><rect x="8.414" y="9" fill="#C5C5C5" width="2" height="1"/><path fill="#C5C5C5" d="M12.363 5c-.039.347-.112.681-.226 1h2.276v8h-7v-5.05c-.342-.039-.676-.112-1-.228v6.278h9v-10h-3.05z"/><path fill="#C5C5C5" d="M10.708 8h1.706v-1h-.762c-.257.384-.585.712-.944 1z"/><path fill="#C5C5C5" d="M11.414 4.5c0-1.933-1.567-3.5-3.5-3.5s-3.5 1.567-3.5 3.5c0 .711.215 1.369.579 1.922l-3.579 3.578 1 1 3.579-3.578c.552.363 1.211.578 1.921.578 1.933 0 3.5-1.567 3.5-3.5zm-5.999 0c0-1.381 1.119-2.5 2.5-2.5s2.5 1.119 2.5 2.5-1.12 2.5-2.5 2.5-2.5-1.119-2.5-2.5z"/><path fill="#2B282E" d="M12.138 6c-.126.354-.279.693-.485 1h.762v1h-1.706c-.771.616-1.734 1-2.795 1-.169 0-.333-.031-.5-.05v5.05h7v-8h-2.276zm-3.724 3h2v1h-2v-1zm1 4h-1v-1h1v1zm2 0h-1v-2h1v2zm2 0h-1v-3h1v3z"/><circle fill="#2B282E" cx="7.914" cy="4.5" r="2.5"/></svg>
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