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Suils as a Gravatar default image
Gravatar lets you specify a fallback image with the d (default) parameter, used when an email address has no Gravatar. Point it at a Suils avatar so every user gets a consistent picture.
Gravatar requires a raster URL, so use the png format. The d value must be URL‑encoded:
https://gravatar.com/avatar/<emailHash>?d=<url-encoded Suils PNG URL>For example, with the Suils avatar https://avatars.suils.es/kawaii/png?seed=user-123&size=256:
https://gravatar.com/avatar/<emailHash>?d=https%3A%2F%2Favatars.suils.es%2Fkawaii%2Fpng%3Fseed%3Duser-123%26size%3D256TIP
Gravatar caps default images at 256×256 px and only accepts raster formats (png, jpg) — not SVG. Keep size at 256 or below.
