Unity projects come in all shapes and forms: some are built from scratch recently using latest Unity versions, some come with artifacts from the multiple years in which developers worked on them. One of the diverse approaches to building projects in Unity revolves around asset management.
While it's considered good practice to have strong links between scenes or scriptable objects and secondary assets, like prefabs, textures and sounds, many people still resort to good old
Resources.Load API to dynamically load some content into the game.
By default Luna detects all assets in use by the scenes you have selected in the plugin window, this includes: all prefabs, textures, animations and other resources found in the project.
Whilst this strategy often produces undesirably big builds, especially with games which have a lot of assets, it is a preferable starting point because it helps avoid issues caused by misconfiguration and eases debugging of first exports.
On the other hand, we by default do not include the "Resources" and "Streaming Assets" Special Unity folders. If you are making use of either of these respective special folders in your playable, you can tick these options for inclusion:
That is, if a scene is using a prefab, developers don't have to explicitly include this prefab into an export - Luna will discover this dependency and export it automatically.