This is the same as the previous release, but addresses a not-so-recent issue where the colors for sloped voxels were grayish compared to blocky voxels. Now, the colors for a cube's faces and outline should be the same regardless or whether slopes are used. There is some oddity with the shading on enlarged sloped models, but this is more tied to how the slopes are created than the new colors.
Usage has not changed; see the readme or Usage.txt for more info.