On the Gantt view, sometimes deliverables have multiple dependencies, and it is very hard to visualize those dependencies separately (all grey lines).
It would be great if when one clicks on a dependency line, it changed color while selected, or some other visual differentiation.
Or maybe if the dependency lines matched the same color as the Release Phase (which ideally are all unique but is up to user configuration). That way you wouldn't have to click on each line to differentiate where it goes, you could see that whole picture without having to click around. Note: also knowing that dependency lines turn red if the dependency is broken.