Happy SVG: data:image/svg+xml;base64, PHN2ZyB2aWV3Qm94PSIwIDAgMjAwIDIwMCIgd2lkdGg9IjQwMCIgIGhlaWdodD0iNDAwIiB4bWxu cz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPgogIDxjaXJjbGUgY3g9IjEwMCIgY3k9IjEw MCIgZmlsbD0ieWVsbG93IiByPSI3OCIgc3Ryb2tlPSJibGFjayIgc3Ryb2tlLXdpZHRoPSIzIi8+ CiAgPGcgY2xhc3M9ImV5ZXMiPgogICAgPGNpcmNsZSBjeD0iNjEiIGN5PSI4MiIgcj0iMTIiLz4K ICAgIDxjaXJjbGUgY3g9IjEyNyIgY3k9IjgyIiByPSIxMiIvPgogIDwvZz4KICA8cGF0aCBkPSJt MTM2LjgxIDExNi41M2MuNjkgMjYuMTctNjQuMTEgNDItODEuNTItLjczIiBzdHlsZT0iZmlsbDpu b25lOyBzdHJva2U6IGJsYWNrOyBzdHJva2Utd2lkdGg6IDM7Ii8+Cjwvc3ZnPg==
Sad SVG: data:image/svg+xml;base64, Cjxzdmcgd2lkdGg9IjEwMjRweCIgaGVpZ2h0PSIxMDI0cHgiIHZpZXdCb3g9IjAgMCAxMDI0IDEw MjQiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyI+CiAgPHBhdGggZmlsbD0iIzMz MyIgZD0iTTUxMiA2NEMyNjQuNiA2NCA2NCAyNjQuNiA2NCA1MTJzMjAwLjYgNDQ4IDQ0OCA0NDgg NDQ4LTIwMC42IDQ0OC00NDhTNzU5LjQgNjQgNTEyIDY0em0wIDgyMGMtMjA1LjQgMC0zNzItMTY2 LjYtMzcyLTM3MnMxNjYuNi0zNzIgMzcyLTM3MiAzNzIgMTY2LjYgMzcyIDM3Mi0xNjYuNiAzNzIt MzcyIDM3MnoiLz4KICA8cGF0aCBmaWxsPSIjRTZFNkU2IiBkPSJNNTEyIDE0MGMtMjA1LjQgMC0z NzIgMTY2LjYtMzcyIDM3MnMxNjYuNiAzNzIgMzcyIDM3MiAzNzItMTY2LjYgMzcyLTM3Mi0xNjYu Ni0zNzItMzcyLTM3MnpNMjg4IDQyMWE0OC4wMSA0OC4wMSAwIDAgMSA5NiAwIDQ4LjAxIDQ4LjAx IDAgMCAxLTk2IDB6bTM3NiAyNzJoLTQ4LjFjLTQuMiAwLTcuOC0zLjItOC4xLTcuNEM2MDQgNjM2 LjEgNTYyLjUgNTk3IDUxMiA1OTdzLTkyLjEgMzkuMS05NS44IDg4LjZjLS4zIDQuMi0zLjkgNy40 LTguMSA3LjRIMzYwYTggOCAwIDAgMS04LTguNGM0LjQtODQuMyA3NC41LTE1MS42IDE2MC0xNTEu NnMxNTUuNiA2Ny4zIDE2MCAxNTEuNmE4IDggMCAwIDEtOCA4LjR6bTI0LTIyNGE0OC4wMSA0OC4w MSAwIDAgMSAwLTk2IDQ4LjAxIDQ4LjAxIDAgMCAxIDAgOTZ6Ii8+CiAgPHBhdGggZmlsbD0iIzMz MyIgZD0iTTI4OCA0MjFhNDggNDggMCAxIDAgOTYgMCA0OCA0OCAwIDEgMC05NiAwem0yMjQgMTEy Yy04NS41IDAtMTU1LjYgNjcuMy0xNjAgMTUxLjZhOCA4IDAgMCAwIDggOC40aDQ4LjFjNC4yIDAg Ny44LTMuMiA4LjEtNy40IDMuNy00OS41IDQ1LjMtODguNiA5NS44LTg4LjZzOTIgMzkuMSA5NS44 IDg4LjZjLjMgNC4yIDMuOSA3LjQgOC4xIDcuNEg2NjRhOCA4IDAgMCAwIDgtOC40QzY2Ny42IDYw MC4zIDU5Ny41IDUzMyA1MTIgNTMzem0xMjgtMTEyYTQ4IDQ4IDAgMSAwIDk2IDAgNDggNDggMCAx IDAtOTYgMHoiLz4KPC9zdmc+
Example SVG: data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI1MDAiIGhlaWdo dD0iNTAwIj4KICAgIDx0ZXh0IHg9IjAiIHk9IjE1IiBmaWxsPSJibGFjayI+CiAgICAgICAgSGkh IFlvdXIgYnJvd3NlciBkZWNvZGVkIHRoaXMKICAgIDwvdGV4dD4gICAgCjwvc3ZnPg==