I've just noticed that unread tabs have the very (in my opinion, only speaking for myself) annoying animated rocket when using "Stellar" as icon theme.
While I don't mind the Psi rocket on the roster, it really distracts me in the tabs and creates unnecessary pressure to reply. I wish the human eye wasn't so susceptible to movement and light/bright colours, but hey, it's the way the cookie crumbles.
Please remove the animation or make it optional.