In case of problem with this tool, please try Firefox on a desktop PC.
Also don't forget to test your package before to share it.
This is the package unique identifier. It is not directly shown to the user and should contain lltemplate somewhere so that it can be browsed on the applicaton store.
This is the name shown to the user
This icon is displayed to the user in the app drawer and when browsing installed templates.
This is the Template file as exported from Lightning Launcher (usually found in /sdcard/LightningLauncher).