Is it possible to change the font color of a n active tab to an animation svg?

Hey I have an svg of a color animation, it's basically a gradient that loops around. And was wondering if it's possible to change the font color of the active tab to that svg animation.

I've been trying to do it with:

.tabbrowser-tab[selected] .tab-content{ text-color: url(../icons/animation.svg) !important; }

but can't get it to work.

Thanks for any help!