I mean the images for the platforms themselves, not their games - Clear Logo, Banner, ... for like the N64, Snes, .... themselves.
From what I've seen, those images are not included by the Themes I've used (Default, Switch, StationEmulation), but they rather use all the same images from the /Images/Platforms/ folder in Launchbox itself. And in there, while the platform images for like Gamecube, Windows, SNES, ... are provided, those platforms I've mentioned have no images provided whatsoever.
I've created some images for these platforms myself and placed them in that folder for use with all themes, but it riddled me that those aren't provided by Launchbox itself.