Themes must be inside a folder named “THM” in uppercase for any of the 3 devices, SMB share, HDD and USB.
If (or when) the device is started, OPL will list the themes found at these locations:
SMB ( Network Share)
In the root directory or drive you set as your PS2SMB share, in a THM folder
PS2SMB/THM/thm_My New Theme/
In the root of the drive or partition set for OPL (where your games are located), in a THM folder
mass:/THM/thm_My New Theme/
HDD (Internal hard drive)
Place the THM folder in the OPL Partition of the HDD [+OPL], you can create the partition if it doesnt exist, by using uLaunchELF [FileBrowser > MISC > HddManager]
HDD0:+OPL/THM/thm_My New Theme/
Themes stored on any of these devices will not display if that device is not enabled, so be sure you enabled the device you store your themes in.
Themes that are stored on a MC must be in a folder named "OPL" in uppercase and are automatically enabled to use.