We’ve brought a number of key workflow improvements to Mari 4.0. A drag-and-drop fill mechanism allows users to fill paint across their selections in a far more intuitive manner, reducing time and increasing efficiency. The Brush Editor has been merged into the Tool Properties Palette, with the brush being used now clearly displayed. It’s easy to browse and load sets of texture files into Mari, with a new Palette for browsing texture sets. The Layers Palette is now more intuitive when working with Group layers, allowing users to achieve the setups they desire with less steps. And users now have a shader in Mari that previews and works with the channels that match their final 3D program/shader: the Principled BRDF, based on the 2012 paper from Brent Burley of Walt Disney Animation Studios.