Available since 1.8.8.2 beta 15
You already have Recalbox overlays but you want to convert them in order to use them on Batocera / Retrobat. ARRM offers a converter. It will browse your Recalbox Overlays folder, retrieve positioning information from associated .cfgs, and recreate Batocera/Retrobat-compatible .info files. .png files are also recovered.
Video Tutorial
Here's how.
Go to the 'Tools' menu, scroll down to the 'Convert Recalbox Overlays' group
Then click the Convert to BATOCERA button.
When the conversion is complete, you can navigate to the Overlays converted Folder directory by clicking on .