I’m new to the title studio, now that Avid pulled the rug out from under the old title tool. A client’s particular lower third treatment requires a black bar background which transitions from opaque along the bottom edge to totally transparent when it gets to the top. So imagine a black bar that fades to nothing going from bottom to top. I cannot get Boris to do this, and I need it all the time. It keeps fading from black to a grey wash which I cannot get rid of. Can someone tell me what I’m doing wrong?