Map Style Builder

• MapLibre GL style — the headline export: a valid version: 8 style document with layers for background, water, parks, buildings, three road classes (each with a casing), boundaries, and labels with halos. Its sources block points at a placeholder OpenMapTiles-schema vector tile URL — swap in your own tile endpoint (MapTiler, self-hosted tileserver-gl, etc.) and it will render for real.
• Leaflet snippet — raster tiles can't be recolored per-layer, so this is a CSS filter approximation: it derives an invert/sepia/saturate/brightness chain from your land and water colors and applies it to standard OSM tiles, plus your UI colors for the page. Clearly imperfect, but a fast way to get "close enough" without vector tiles.
• JSON tokens — a plain { name: "#hex" } map for use in any other tooling.
• PNG snapshot — the preview SVG rendered to a 1800×1240 canvas and downloaded.

The preview city ("Port Meridian") is procedurally drawn inline SVG — no tiles, no network. The URL hash always carries your current theme, so the address bar is a shareable link.