New tests style.

[SimpleFoxOfficial]

F-Stop chambers style (from concept in final hours of portal 2)

Thinking with time machine (mod)

[TeamSpen210]

The beta F-Stop style would require huge numbers of custom resources to do. TWTM's style isn't that good with the portal surface confusion. The time would be better spent improving existing styles.

[slambo311]

The TWTM style might not be that good, but how about at least its custom test elements, such as upside-down droppers and monitors (with the timer controlling which video to play)?

[SimpleFoxOfficial]

And the obs rooms style

[SimpleFoxOfficial]

Also monitors can show the video, that showing on elevator