Happy SVG: data:image/svg+xml;base64, PHN2ZyB2aWV3Qm94PSIwIDAgMjAwIDIwMCIgd2lkdGg9IjQwMCIgIGhlaWdodD0iNDAwIiB4bWxu cz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPgogIDxjaXJjbGUgY3g9IjEwMCIgY3k9IjEw MCIgZmlsbD0ieWVsbG93IiByPSI3OCIgc3Ryb2tlPSJibGFjayIgc3Ryb2tlLXdpZHRoPSIzIi8+ CiAgPGcgY2xhc3M9ImV5ZXMiPgogICAgPGNpcmNsZSBjeD0iNjEiIGN5PSI4MiIgcj0iMTIiLz4K ICAgIDxjaXJjbGUgY3g9IjEyNyIgY3k9IjgyIiByPSIxMiIvPgogIDwvZz4KICA8cGF0aCBkPSJt MTM2LjgxIDExNi41M2MuNjkgMjYuMTctNjQuMTEgNDItODEuNTItLjczIiBzdHlsZT0iZmlsbDpu b25lOyBzdHJva2U6IGJsYWNrOyBzdHJva2Utd2lkdGg6IDM7Ii8+Cjwvc3ZnPg==
Sad SVG: data:image/svg+xml;base64, PD94bWwgdmVyc2lvbj0iMS4wIiBzdGFuZGFsb25lPSJubyI/Pgo8c3ZnIHdpZHRoPSIxMDI0cHgi IGhlaWdodD0iMTAyNHB4IiB2aWV3Qm94PSIwIDAgMTAyNCAxMDI0IiB4bWxucz0iaHR0cDovL3d3 dy53My5vcmcvMjAwMC9zdmciPgogIDxwYXRoIGZpbGw9IiMzMzMiIGQ9Ik01MTIgNjRDMjY0LjYg NjQgNjQgMjY0LjYgNjQgNTEyczIwMC42IDQ0OCA0NDggNDQ4IDQ0OC0yMDAuNiA0NDgtNDQ4Uzc1 OS40IDY0IDUxMiA2NHptMCA4MjBjLTIwNS40IDAtMzcyLTE2Ni42LTM3Mi0zNzJzMTY2LjYtMzcy IDM3Mi0zNzIgMzcyIDE2Ni42IDM3MiAzNzItMTY2LjYgMzcyLTM3MiAzNzJ6Ii8+CiAgPHBhdGgg ZmlsbD0iI0U2RTZFNiIgZD0iTTUxMiAxNDBjLTIwNS40IDAtMzcyIDE2Ni42LTM3MiAzNzJzMTY2 LjYgMzcyIDM3MiAzNzIgMzcyLTE2Ni42IDM3Mi0zNzItMTY2LjYtMzcyLTM3Mi0zNzJ6TTI4OCA0 MjFhNDguMDEgNDguMDEgMCAwIDEgOTYgMCA0OC4wMSA0OC4wMSAwIDAgMS05NiAwem0zNzYgMjcy aC00OC4xYy00LjIgMC03LjgtMy4yLTguMS03LjRDNjA0IDYzNi4xIDU2Mi41IDU5NyA1MTIgNTk3cy05Mi4xIDM5LjEtOTUuOCA4OC42Yy0uMyA0LjItMy45IDcuNC04LjEgNy40SDM2MGE4IDggMCAw IDEtOC04LjRjNC40LTg0LjMgNzQuNS0xNTEuNiAxNjAtMTUxLjZzMTU1LjYgNjcuMyAxNjAgMTUx LjZhOCA4IDAgMCAxLTggOC40em0yNC0yMjRhNDguMDEgNDguMDEgMCAwIDEgMC05NiA0OC4wMSA0 OC4wMSAwIDAgMSAwIDk2eiIvPgogIDxwYXRoIGZpbGw9IiMzMzMiIGQ9Ik0yODggNDIxYTQ4IDQ4 IDAgMSAwIDk2IDAgNDggNDggMCAxIDAtOTYgMHptMjI0IDExMmMtODUuNSAwLTE1NS42IDY3LjMt MTYwIDE1MS42YTggOCAwIDAgMCA4IDguNGg0OC4xYzQuMiAwIDcuOC0zLjIgOC4xLTcuNCAzLjct NDkuNSA0NS4zLTg4LjYgOTUuOC04OC42czkyIDM5LjEgOTUuOCA4OC42Yy4zIDQuMiAzLjkgNy40 IDguMSA3LjRINjY0YTggOCAwIDAgMCA4LTguNEM2NjcuNiA2MDAuMyA1OTcuNSA1MzMgNTEyIDUz M3ptMTI4LTExMmE0OCA0OCAwIDEgMCA5NiAwIDQ4IDQ4IDAgMSAwLTk2IDB6Ii8+Cjwvc3ZnPg==
Example SVG = PHN2ZyB4bWxucyA9ICJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgd2lkdGggPSAiNTAwIiBo ZWlnaHQgPSAiNTAwIj4KPHRleHQgeCA9ICIwIiB5ID0gIjE1IiBmaWxsID0gImJsYWNrIj4gSGkh IFlvdXIgYnJvd3NlciBkZWNvZGVkIHRoaXMhIDwvdGV4dD4KPC9zdmc+Cgo=