This mod is mainly a copy of the mod https://mods.factorio.com/mod/VehicleSticker and thus most credits to that author named "hyspeed"!
This mod here adds one more feature. With another shortcut (CTRL + ALT + R) while focusing a vehicle, you can auto-generate the label rich text in a way that it shows the items that are defined by the slot filters of that vehicle. See screenshots for better understanding. Manual labels with CTRL + ALT + S with your own text are still possible :-)
My mod is limited to the use with cars, for example Logicarts (which are technically cars). My mod does not support trains waggons.
Normally I use the MIT license. But since this mod here is mainly a copy of https://mods.factorio.com/mod/VehicleSticker I had to use the same license and thus also GNU GPLv3.