monochromatic. Every pixel is of a different 24-bit colour, and there is a pixel of every colour, so there are exactly 16,777,216 of them at any given time. A pixel's first name is his colour value in hexadecimal (e.g. 0000FF), and his second name is this same value in binary (e.g.. 000000000000000011111111). Although pixels can die, they are instantly reborn as infants, usually to a parent of a similar colour. There is no pregnancy, and any pixel can give birth at any moment. Birth is painless, and merely involves an infant appearing near his parent. Infants are smaller than adult pixels, with rounded corners which quickly sharpen. Pixels do not have limbs or faces, but they can manipulate objects by mild telekinesis. Some of them wear clothes, but usually this is limited to a tie, collar and shirt pocket (without a shirt). Although there are only 224 of them, pixels can create composite images by screencapping themselves (that is, creating non-living temporary duplicates). In one minor story arc, some pixels managed to achieve transparency (became 32-bit). As of strip No. 265, this ability still exists. Voxels A voxel is the three-dimensional equivalent of a pixel, being cubic and able to move in the Z-axis. Their births differ from those of the pixels in that the child grows inside the parent until they are of equal size, at which point the parent dies and another voxel becomes pregnant with the recently deceased. Polygons Polygons are uniformly triangular, and although they are two-dimensional, they have the ability to rotate in three dimensions. They are constantly taking part in jousting matches, in which two polygons attempt to bisect each other. This is also their means of procreation, as the two parts of the loser each become an infant polygon. Unlike the other races, they are silent. Their means of communication is via "saying" images to one another. Unlike the images "said" by voxels, their word-images are well-drawn and well-defined. Vectors Vectors in the pixel universe aren't vectors per se; they are quadrilaterals described by vectors. Like pixels, they are limited to two dimensions. In the comic, vectors are displayed with control boxes and a central anchor point similar to those used in graphics editors such as Photoshop. Each one is capable of changing these vectors at whim, allowing them to shape-shift and fly. They are belligerent and not very bright. Vectors do not