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2. Coloring book - Wikipedia

   en.wikipedia.org/wiki/Coloring_book

   This is an accepted version of this page This is the latest accepted revision, reviewed on 23 February 2025. Book containing line art, to which the user is intended to add color For other uses, see Coloring Book (disambiguation). Filled-in child's coloring book, Garfield Goose (1953) A coloring book is a type of book containing line art to which people are intended to add color using crayons ...

3. Paint by number - Wikipedia

   en.wikipedia.org/wiki/Paint_by_number

   The user selects the color corresponding to one of the numbers then uses it to fill in a delineated section of the canvas, in a manner similar to a coloring book. The kits were invented, developed and marketed in 1950 by Max S. Klein, an engineer and owner of the Palmer Paint Company in Detroit, Michigan, United States, and Dan Robbins, a ...

4. List coloring - Wikipedia

   en.wikipedia.org/wiki/List_coloring

   For a graph G, let χ(G) denote the chromatic number and Δ(G) the maximum degree of G.The list coloring number ch(G) satisfies the following properties.. ch(G) ≥ χ(G).A k-list-colorable graph must in particular have a list coloring when every vertex is assigned the same list of k colors, which corresponds to a usual k-coloring.

5. Colour Index International - Wikipedia

   en.wikipedia.org/wiki/Colour_Index_International

   (This abbreviation is sometimes mistakenly thought to be CL, due to the font used to display it.) The generic name lists first the class of dye (acid dye, disperse dye, etc.), then its hue (e.g., orange), followed by a number assigned by the Colour Index, in chronological order (e.g., Acid Orange 5, Acid Orange 6, Acid Orange 7). [3]

6. Complete coloring - Wikipedia

   en.wikipedia.org/wiki/Complete_coloring

   Equivalently, a complete coloring is minimal in the sense that it cannot be transformed into a proper coloring with fewer colors by merging pairs of color classes. The achromatic number ψ(G) of a graph G is the maximum number of colors possible in any complete coloring of G. A complete coloring is the opposite of a harmonious coloring, which ...

7. Color printing - Wikipedia

   en.wikipedia.org/wiki/Color_printing

   Color printing can also involve as few as one color ink or color inks which are not the primary colors. Using a limited number of color inks, or color inks in addition to the primary colors, is referred to as "spot color" printing. Generally, spot-color inks are formulations that are designed to print alone, rather than to blend with other inks ...