Gradients?

[sdfg2]

Is linear-gradient supported?

tab-item.active {
  background-image: linear-gradient(to-right, #7040ff, #05b5ff) !important;
}

doesn't seem to work.

[irvinm]

You don't need the "-" for "to right" and I think you want to apply it to ".background":

tab-item.active .background {
  background: linear-gradient(to right, #7040ff, #05b5ff);
}

[sdfg2]

Ah, don't need background, just to right not to-right.