Helia as a proper noun is referred to "Helia" with a capital H.
One is welcome to use the Helia logos/name in their own projects, put it on their readmes, etc. without consent of the project maintainers.
Various links related to Helia's branding:
- Google drive folder with various assets including logos, fonts, and slide tempaltes
- Brand sheet (This is likely only visible to people with Protocol Labs Figma access - happy to share with others but this is manual - please ask maintainers.)