Usage #
Capture the overlay image as a resource:
{{ $overlay := "" }}
{{ $path := "images/logo.png" }}
{{ with resources.Get $path }}
{{ $overlay = . }}
{{ else }}
{{ errorf "Unable to get resource %q" $path }}
{{ end }}
The overlay image can be a [global resource], a [page resource], or a [remote resource].
Create the filter:
{{ $filter := images.Overlay $overlay 20 20 }}