[wutbrodo]

> Especially with how a Gmail Tab blinks when I get a hangout message.

The pinned tab for GMail has a blue dot for "attention needed". Though this is suboptimal because I think it represents both IMs and new mail.

[Zarel]

Are you sure that's not an extension? On macOS, at least, it's a very subtle gradient color change animation that's hard to notice.

[lexicality]

I get a blue dot on my mac