{{- /*
Returns a map icon as a data: URI, or "" if there is none by that name.
The name is looked up in the vendored icon sets in assets/vendor/icons/, in the order
osmic, maki, temaki; a prefix like "maki:garden" picks the set.
*/ -}}
{{- $name := . -}}
{{- $sets := slice "osmic" "maki" "temaki" -}}
{{- with findRESubmatch `^(osmic|maki|temaki):(.+)$` . 1 -}}
  {{- $sets = slice (index . 0 1) -}}
  {{- $name = index . 0 2 -}}
{{- end -}}
{{- $uri := "" -}}
{{- range $sets -}}
  {{- if not $uri -}}
    {{- with resources.Get (printf "vendor/icons/%s/%s.svg" . $name) -}}
      {{- $uri = printf "data:image/svg+xml;base64,%s" ((. | minify).Content | base64Encode) -}}
    {{- end -}}
  {{- end -}}
{{- end -}}
{{- return $uri -}}