When presenting a roadmap, the different coloured flags aren't a great way to distinguish goals/initiaves. Before using Aha, our roadmap presentation benefitted from images/icons to show which features belonged to which goal/initiative. I think being able to associate a custom image would improve the flexibity of the roadmap report.
It would be of value to be able to upload small .PNG images that can serve as product icons. It would even be a valuable step if you could upload a picture to serve as a icon for the entire RELEASE.