Workspace owners and admins, plus the project's owner, can edit a project's settings.
Go to Settings → Projects and open the project.
Update the name (1 to 100 characters) or color.
Save changes.
Default content visibility
Each project has a default visibility for new conversations and workflows: Private (only the creator sees it) or Project (everyone with project access sees it). This setting is in Settings → General for the project. It applies only to new content; existing items keep their current visibility.