diff --git a/portal/assets/themes/clouds/background.jpg b/portal/assets/themes/clouds/background.jpg
new file mode 100644
index 0000000..32a876c
Binary files /dev/null and b/portal/assets/themes/clouds/background.jpg differ
diff --git a/portal/assets/themes/clouds/custom.css b/portal/assets/themes/clouds/custom.css
new file mode 100644
index 0000000..a86203f
--- /dev/null
+++ b/portal/assets/themes/clouds/custom.css
@@ -0,0 +1,57 @@
+/* Make page texts black */
+.user-container h2,
+.user-container small,
+.user-container .user-mail,
+.user-container .user-mail,
+.overlay .footer a,
+a.app-tile,
+#ynh-logout {
+  color: black !important;
+}
+
+/* The layout is slightly different, the apps are scollable but not the headers and footers */
+.overlay {
+  background-image: url("background.jpg");
+  width: 100%;
+  height: 100%;
+  position: absolute;
+  background-size: cover;
+  background-position: center;
+}
+
+.overlay #apps {
+  max-height: 70%;
+  overflow: auto;
+
+}
+
+.overlay .footer {
+  position: absolute;
+  bottom: 0;
+}
+
+.listing-apps {
+  padding-top: 10px;
+}
+
+/* Apps colors */
+.app-tile {
+  background-color: rgba(255, 255, 255, 0.5) !important;
+}
+
+.app-tile:hover:after,
+.app-tile:focus:after,
+.app-tile:hover:before,
+.app-tile:focus:before {
+    background: rgba(255, 255, 255, 0.5) !important;
+}
+
+/* Use custom ynh logo white (there's a white one in assets, but let's not depend on it) */
+#logo {
+  z-index: 10;
+  background-image: url("/ynhtheme/ynhlogo.svg");
+}
+
+#ynh-overlay-switch {
+  background-image: url("/ynhtheme/ynhlogo.svg");
+}
diff --git a/portal/assets/themes/clouds/custom.js b/portal/assets/themes/clouds/custom.js
new file mode 100644
index 0000000..e69de29
diff --git a/portal/assets/themes/clouds/ynhlogo.svg b/portal/assets/themes/clouds/ynhlogo.svg
new file mode 100644
index 0000000..f960fd3
--- /dev/null
+++ b/portal/assets/themes/clouds/ynhlogo.svg
@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Generator: Adobe Illustrator 15.0.0, SVG Export Plug-In  -->
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd" [
+	<!ENTITY ns_flows "http://ns.adobe.com/Flows/1.0/">
+]>
+<svg version="1.1"
+	 xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:a="http://ns.adobe.com/AdobeSVGViewerExtensions/3.0/"
+	 x="0px" y="0px" width="98px" height="85px" viewBox="-0.25 -0.25 98 85"
+	 overflow="visible" enable-background="new -0.25 -0.25 98 85" xml:space="preserve">
+<defs>
+</defs>
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+<path fill="#FFFFFF" d="M28,62c0.1,5.67,4.4,11.33,2,17c-4.32-1.01-6.57-4.09-9-7c-3.15-0.48-2.26,3.07-6,2
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+	C20.98,10.35,22.67,11,24,12z"/>
+</svg>