set favicon dynamically according to color-scheme preference

for this one I peered into GitHub solemn U experience: when you change your system's color scheme, the GitHub favicon gloriously changes too. It is like magic. I wanted that too: so I researched. the same trick as in Twitter's source code can be used (ray.bingo/blog/...) <link rel="icon" href="favicon-light.png" media="(prefers-color-scheme: light)"> <link rel="icon" href="favicon-dark.png" media="(prefers-color-scheme: dark)"> thanks to: dev.to