Preferences, not design settings: these follow you, not the file.
Include Aseprite files
every object variation also exports as an .aseprite file beside its PNG: indexed on
the design's palette, one frame per state (closed, open) with tags, and the object's foot as a slice pivot.
Off keeps exports to PNGs and engine files. Placed objects in other tabs' exports follow it too, and so do
a desktop project's linked exports.
Preview only. The blue figure shows where a character goes between the back and front layers. It is not part of your object and is never exported.
Assembled from the sheet exactly as an engine autotiles it — judge the set, not one tile.
The tileset, 2×Decorations, 2× — separate sprites; the dot is each one's pin