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Fixed 16-color palette (1 bit each of red, green, blue, and brightness, with bright white replaced by orange), with 2 colors per block on an 8×1 pixel attribute grid. Commodore Plus/4 (1984) Multicolor and High resolution 16-color graphic modes, from 121-color master palette (black and 15 hues by 8 luminosity levels).
The 4-bit RGBI palette is similar to the 3-bit RGB palette but adds one bit for intensity. This allows each of the colors of the 3-bit palette to have a dark and bright variant, potentially giving a total of 2 3 ×2 = 16 colors. However, some implementations had only 15 effective colors due to the "dark" and "bright" variations of black being ...
In computer graphics, a palette is the set of available colors from which an image can be made. In some systems, the palette is fixed by the hardware design, and in others it is dynamic, typically implemented via a color lookup table (CLUT), a correspondence table in which selected colors from a certain color space's color reproduction range are assigned an index, by which they can be referenced.
Thus, the entire set of Extended Color BASIC graphics commands can be used with the artifact colors. Some users developed a set of 16 artifact colors [ how? ] using a 4×2 pixel matrix. Use of POKE commands also make these colors available to the graphics commands, although the colors have to be drawn one horizontal line at a time.
Serekhs bearing the rebus symbols n'r (catfish) and mr (chisel) inside, being the phonetic representation of Narmer's name [16]. The Narmer Palette is a 63-centimetre-tall (25 in) by 42-centimetre-wide (17 in), shield-shaped, ceremonial palette, carved from a single piece of flat, soft dark gray-green greywacke. [14]