document brand icons for verified actions in the marketplace

[jsoref]

Code of Conduct

• I have read and agree to the GitHub Docs project's Code of Conduct

What article on docs.github.com is affected?

https://docs.github.com/en/actions/creating-actions/publishing-actions-in-github-marketplace
https://docs.github.com/en/actions/creating-actions/metadata-syntax-for-github-actions#branding

What part(s) of the article would you like to see updated?

1. branding
   • Update introduction to briefly mention the avatar used by default and explain that you can use branding to override this avatar for actions published from user-owned repositories and for unverified actions published from organization-owned repositories.
2. About badges in GitHub Marketplace
   • Update to explain that verified actions always display the organization avatar.
   • Mention that for other actions you can override the default icon by updating the action metadata file and link to branding

Additional information

https://docs.github.com/en/actions/creating-actions/publishing-actions-in-github-marketplace#about-badges-in-github-marketplace has pictures that show icons that are obviously not listed in https://docs.github.com/en/actions/creating-actions/metadata-syntax-for-github-actions#branding but there's nothing that explains how this works.

[nguyenalex836]

@jsoref Thanks for opening an issue! I'll get this triaged for review ✨

[felicitymay]

Thanks for raising this interesting question. My assumption is that when an organization publishes an action, it automatically inherits the profile image for that organization (for example, Snyk and Atlassian), but that you can override this default by defining branding.

You can see that the https://github.com/marketplace/actions/snyk-node action, created by someone outside the Snyk organization uses the Feather alert-circle icon and that this is defined in the branding metadata for the action: https://github.com/awshole/snyk-node/blob/13b3b80f6e799f615fb8275464e69f04a7fa7057/action.yml#L4-L5.

In contrast, branding is undefined by this action released by the Snyk organization, see https://github.com/snyk/release-notes-preview/blob/master/action.yaml.

Before we add anything about this to the documentation, I'd like to get this confirmed by a subject matter expert.

[github-actions]

Thanks for opening an issue! We've triaged this issue for technical review by a subject matter expert 👀

[nguyenalex836]

Hi @jsoref 👋

It turns out that we were almost right:

• The default icon is the avatar of the owner of repository associated with the action, so an organization or user avatar.
• You can override the default icon by defining an alternate branding.
• A verified action published by an organization has the organization's avatar, overriding any branding defined in an action.yml file.

We'll update the issue summary to suggest making the following docs changes:

1. branding
   • Update introduction to briefly mention the avatar used by default and explain that you can use branding to override this avatar for actions published from user-owned repositories and for unverified actions published from organization-owned repositories.
2. About badges in GitHub Marketplace
   • Update to explain that verified actions always display the organization avatar.
   • Mention that for other actions you can override the default icon by updating the action metadata file and link to branding

and add the help wanted label, so that you or anyone else may submit a PR to make these changes 💛