A Helm chart may include an icon
value, which is
A URL to an SVG or PNG image to be used as an icon
It is optional, but helm lint
recommends it.
But where is this URL used?
file:
URL for a local source-code file.Helm Chart icon is used in web consoles for Helm Charts. For example, if you look at https://hub.helm.sh/, you can find icons. Also OpenShift and IBM Cloud use them in their solutions.
The URL should be a publicly available link, since Helm Package just creates a TGZ with your Chart (not really much more).