Tile size is controlled by the in-UI slider (persisted per-user); the tileSize setting is not used.
Thumbnails are stored locally under the extension’s globalStorage/thumbnails/ and are not synced.
Screenshot Notes
Uses system Chrome/Edge via --headless=new. If a browser isn’t found, you’ll be prompted to select it. First run may ask for permissions.
Build (Dev)
npm install
npm run compile
# Press F5 (Run Extension) to launch an Extension Development Host
Package
npm run package
Data & Sync
Metadata (projects/folders) syncs via Settings Sync; thumbnails do not.
On a new machine: placeholders show; if auto-screenshot is enabled, the extension will generate a few missing thumbnails in the background when URLs are set.