Small: I agree with others about better color flexibility, just give us a Hex field and the ability to save color presets.
Medium: Although you can do Ripple Delete, I’d like it as intuitive as Adobe Premiere… right-click the leftmost track with space, select Ripple Delete and the whole project moves left into place WITH CC lanes staying aligned.
Large: Seamless back-and-forth integration with Dorico… work in one, send to the other all day long and/or until the cows come home.