//Encode data into a string using base64 encoding //base64 -i sad.svg (on terminal)

Happy SVG: data:image/svg+xml;base64,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

Sad SVG: data:image/svg+xml;base64,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

example SVG: data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI1MDAiIGhlaWdodD0iNTAwIj48dGV4dCB4PSIwIiB5PSIxNSIgZmlsbD0iYmxhY2siPkhpISBZb3VyIGJyb3dzZXIgZGVjb2RlZCB0aGlzPC90ZXh0Pjwvc3ZnPg==