- "Nearby on Wikipedia" linked to KIWIX_URL, a Docker-internal hostname (http://kiwix:8080) no real browser can resolve. Split it: KIWIX_URL stays server-side-only for the reachability check, and the link itself is built from KIWIX_PUBLIC_PORT (kiwix-serve's newly published host port) plus whatever host the visitor already used to reach maptool — works regardless of which hostname/IP that is. - The Save button went white on hover in GTK-themed Chrome: the browser's native button skin was painting over the custom background because appearance wasn't reset. - The map preview marker for a pending note always showed a plain red pin no matter which icon was picked in the form. NoteSaveForm now reports icon changes via onIconChange so NotesControl can update the marker's glyph live. - Saving a note (or a Measure "Save as note") left the new/grown .geojson file unchecked and invisible until manually toggled on. notifyGpxStoreChanged now carries the affected path so GpxPanelControl auto-shows it.