Green Screen Titles

For this, I traced a path over a text layer using the pen tool and added a trim path, then I added an end keyframe for 0% and one for 100%, and set the text layer track mat to Alpha Matte. Then I copied and pasted those two layers, removed the keyframes and changed the colour to pink. I keyframed the opacity to come in and out to make it feel like a flickering neon light behind it.