Hi, from my understanding Apple's SF Symbols can only be used in apps but not on websites or app icons etc. Can custom symbol images generated using the template files provided by the SF Symbols app and then edited with apps like Sketch and Figma be used on websites? The following images are the custom symbols I designed. Please let me know if I'm free to use them on websites, images, etc.

I'm attempting to make a custom SF Symbol. But upon exporting the custom SVG file, the Symbols app refuses to validate it. I've tried dozens of variations, nothing seems to fix this.

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