A raster image (e.g. a hand-drawn map annotation) georeferenced onto lmb-maptwo as a MapLibre image source. geom is the image's top-left corner; width_m is the desired on-the-ground width, height derived from the image's own aspect ratio. filename is a static asset filename served from lmb-maptwo's static dir (e.g. port-blakely-label.png), not a path/URL. See ontologies.mapping.image_overlay_coordinates for the georeferencing math, and the build_map_style_job Dagster asset that regenerates map-style.json from these rows.
filename note width_m yid