Microsoft's redesigned Paint app for Windows 10 looks awesome!
>> The app includes all the familiar features of the regular version of Paint including 3D object support — an ideal addition for HoloLens.
>> It has a range of markers and art tools to help artists create objects, and brushes that can be used directly on 3D objects.
>> All of the tools appear to be pen- and touch-friendly, with an interface that mixes 3D models, 2D images, stickers, and community tools for 3D content.