The document discusses various aspects of color theory including: 1) Color immediately attracts attention and young children will group objects by color rather than other attributes. Color interaction and effects are addressed in color theory. 2) Colors are never seen in isolation and are influenced by surrounding colors through simultaneous contrast. Lighting also affects color perception. 3) Key aspects of color include hue (name of color), value (lightness or darkness), and color schemes which provide principles for pleasing color combinations and relationships on a color wheel. 4) Emphasis in a design is used to attract attention and can be created through isolation, placement, or contrast compared to other elements. Application of color theory principles depends on the