- Install "WinSCP" https://winscp.net/eng/index.php
Make sure you select Commander View.
- Locate the IP on your Pi
- Open the WinSCP, enter IP of the Pi, Enter Username "pi" password "raspberry"
- On the remote window (right side) click the Folder Up button twice to get to the root of the Pi.
When you see folders bin and boot, then you are at the root.
- Navigate to /opt/retropie/configs/all/emulationstation/themes
- Copy the **unarchived** theme folder and all of the contents into the Themes folder.
Here is a very nice theme! https://github.com/SuperMagicom/es-theme-nostalgic
More info. https://retropie.org.uk/forum/topic/16825/theme-nostalgic