Perform color conversion with double precision floating-point numbers.
Add sRGB test.
Run all tests.
(make-generic-rgb-color): Utilize make-rgb-color.
(make-generic-rgb-color-from-number): New function.
(make-srgb-color-from-number): Add documentation string.
(make-adoble-rgb-color-from-number): Add documentation string.
(encode-quadruple, decode-quadruple): New function.
(make-generic-cmy-color-from-number): New function.
Fix documentation string.
(make-generic-cmyk-color-from-number): New function.
Fix dependencies.
(normalize-color, absolute-color): New function.
(normalize-color, absolute-color): Define methods.
(normalize-color, absolute-color): Define methods.
(normalize-color, absolute-color): Absolute luminance for black and/or
white is sufficient.
(absolute-luminance): New function.
(absolute-luminance): Define method.
(normalize-color, absolute-color): Use it.
Fix spacing.
New file.
Add file cie-lab.