added portainer

Themes.md

@@ -26,6 +26,8 @@
 <li><a href="#php-library-presenter-themes">PLPP</a></li>
 <li><a href="#synclounge-themes">Synclounge</a></li>
 <li><a href="#the-lounge-themes">The Lounge</a></li>
+<li><a href="#portainer-themes">Portainer</a></li>
+
 </ul>
 
 # Organizr themes
@@ -861,4 +863,32 @@ space-gray.css
 <img src="https://raw.githubusercontent.com/gilbN/theme.park/master/Screenshots/thelounge/hotline.png"></img>
 <img src="https://raw.githubusercontent.com/gilbN/theme.park/master/Screenshots/thelounge/aquamarine.png"></img>
 </p>
+</details>
+
+***
+# Portainer Themes
+
+Custom [Portainer](https://github.com/portainer/portainer) CSS.
+
+![](https://raw.githubusercontent.com/gilbN/theme.park/master/Screenshots/portainer/portainer.gif)
+
+
+```
+https://gilbn.github.io/theme.park/CSS/themes/portainer/XXX.css
+aquamarine.css
+hotline.css
+dark.css
+plex.css
+space-gray.css
+```
+
+### Screenshots
+<details><summary>Expand</summary>
+<p>
+<img src="https://raw.githubusercontent.com/gilbN/theme.park/master/Screenshots/portainer/dark.png"></img>
+<img src="https://raw.githubusercontent.com/gilbN/theme.park/master/Screenshots/portainer/space-gray.png"></img>
+<img src="https://raw.githubusercontent.com/gilbN/theme.park/master/Screenshots/portainer/plex.jpg"></img>
+<img src="https://raw.githubusercontent.com/gilbN/theme.park/master/Screenshots/portainer/hotline.png"></img>
+<img src="https://raw.githubusercontent.com/gilbN/theme.park/master/Screenshots/portainer/aquamarine.png"></img>
+</p>
 </details>