Also worth mentioning that the steemit.svg currently in v11 is the icon for steem.io. The icon for steemit.com has been requested here @ https://github.com/simple-icons/simple-icons/issues/799

Regarding the SteemIt icon - thanks, we'll get that fixed.

We're doing our own icons so we have consistency across the whole set, and also so we have our own feel to things.

We actually are now also doing white/black versions of each icon too, for additional design flexibility (Salman specifically has plans for them).

Anyone can add new icons though, so long as they can find something matching our design style. For the new CPF system, you can add a theme image for the icon, then add a CPF to reference that theme image and specify where on the profile page it shows and what HTML to use to lay it out. So I think you'll be happy with that.

Fair enough and yeah that all sounds great. I keep trying to sneak a peek at v11 but the installer fails on addons :P Hopefully soon...

I notice they are doing something with aria, which I believe Composr supports. I have no idea how useful this is to screenreaders but thought I'd mention it in case it's useful.

<svg aria-labelledby="simpleicons-500px-icon" role="img" ...

Don't know why they're doing that, a standard <img> tag has worked for SVG since IE9, and has an 'alt' attribute.
It's debatable if you would even want to label an icon though, as it's purpose is typically completely visual. If it's a linked icon then the <a> tag has a title attribute to use.