Session Capture Thumbnail Source component as seen in the Scene Inspector
The SessionCaptureThumbnailSource component sets the slot it is on as a source for capturing the session thumbnail, or the preview image used for the currently active session.
An overlay image to superimpose over the normal session capture. This image must have an average alpha channel value under 25% or else it will not be applied.
Usage
Place this component on a slot. The slot's position will then be used as the capture source for the session thumbnail. If multiple slots have this component on it, the capture will be taken via a weighted random pick, where slots with a lower average user distance from them will be more likely to be captured.