It's a really rich set of Icons and They got very high resolution ,ideal for all type of displays devices .
Very nice use of Metro style and many of colors makes it useful in many projects and changes our everyday work a little bit more interesting for our eyes .
The simple shape is main part of this deviation so we can fast find our applications and wanted things just by remembering logo and color of it.
Everything looks modern and won't be boring for us for a long time .
Don't need to worry about missing icons because I hope there aren't any like them xD
Take Care , nice Job !