Center mode (interface)/0.99.5a

Sets brush in center mode. Draws a voxel-filled 2D disc or square shape from its center. 4 center modes are available:
 * Circle or square shape
 * Odd or even size

Circle or square shape
Draws a voxel disc or square,  determines the radius, and the plan where it's projected on.

Odd or even size
Chooses if the shape will be centered on 1 (Odd) or 4 (Even) voxels.