Stroked lines.

A HoloMap.Layer locked to type: "line". See that module for the full prop list, ordering rules and event payloads. Everything here is identical apart from the layer type, which is fixed and cannot be overridden.

Paint properties

line_color, line_width, line_opacity, line_blur, line_dasharray, line_gap_width, line_offset, line_pattern, line_gradient, line_translate.

Layout properties

line_cap, line_join, line_miter_limit, line_round_limit, line_sort_key, visibility.

line_pattern names an image the same way icon_image does: it must come from the style's sprite or from a HoloMap.Image.

Property names may be written as atoms in Elixir style (:fill_color) or as MapLibre specification names ("fill-color"); both reach MapLibre as the latter. The full reference lives in the MapLibre style specification.