This article gives details about updating your user interface:
We updated Icons, etc, to match the Lightning Experience.
Unfortunately Salesforce does not update Icons after the initial install, so it looks a bit "outdated" when viewing the application in Lightning.
The new icons are distributed in the Accorto Folder in Documents.
You can update the icons yourself, or just give us access and we'll do this for you.
We recently updated the project functionality significantly by supporting revenue plan, cost budget and updating the info based on actual information. We created a new layout, which streamlines the display, but new layouts are not distributed after the initial release to preserve your customizations. You probably will not use all of these features, so you may want to adjust it.
Project Line Layout