Wiki / Poster templates
Overlays are a different thing
Templates draw the poster. Overlays stamp badges on top of whatever poster a title ends up with — resolution, edition, ratings, audio codec, studio, streaming service. They live on each library's own Overlays page, not in Poster Studio, and they apply to all libraries of that kind rather than the one you opened.
Each preset has a nine-cell position grid, a pixel offset, a size %, and style controls. The live preview renders against a real title from your library, so you can see a badge land before applying it to everything.
