Build a static frame around content that stays readable while the scene moves.
Use the Stream Overlay Creator alongside this illustrative example.
A practical example
Use a scene with a face camera, gameplay and a score display. Add the exported transparent overlay above those sources, then watch a private recording with active movement. If the frame covers the score or important gestures, move or simplify it rather than shrinking the content to fit unnecessary decoration.
Check the result
Check both light and dark scenes and verify that the transparent centre really reveals the underlying sources. Keep chat and alerts as separate layers so they can be adjusted independently.
Try a comparison
Turn the overlay source off during a private recording and compare readability. If important content is clearer without it, simplify the frame or reduce its occupied area. The purpose of an overlay is to organise the scene, not compete with the demonstration.
What this does not establish
The exported frame does not create a live stream or synchronise events. Its purpose is visual layout, not broadcasting infrastructure.