dark-mode

Fiord made the map dark but flat. I mutate the style JSON at runtime: a road brightness ladder, bright haloed labels, and a guard against fast-toggle flashes.

TL;DR: The author built a dark mode for Fiord by fetching its JSON and overriding paint across 28 layers with brightness steps, since CSS filters broke markers and the built-in dark style lacked contrast. The map renders the base style instantly then upgrades when the mutated style resolves, with guards against stale toggles. This treats style JSON as mutable data, not a fixed product.

CARTO basemaps suddenly require an API key and my map filled with watermarks. The story of migrating three Leaflet components to MapLibre GL on OpenFreeMap tiles.

TL;DR: CARTO basemaps now require an API key, leaving a watermark across my map and a 5-million-tiles non-commercial quota. Instead of managing someone's meter, I moved three Leaflet components to MapLibre GL with free unlimited OpenFreeMap; props and test IDs stayed intact, so all E2E tests passed untouched. Dark mode now swaps styles through setStyle instead of a CSS invert hack.