A brand new color map suitable for `ansi-color-get-face'.
The value of this variable is usually constructed by
`ansi-color-make-color-map'. The values in the array are such that the
numbers included in an SGR control sequences point to the correct
foreground or background colors.
Example: The sequence [34m specifies a blue foreground. Therefore:
(aref ansi-color-map 34)
=> (foreground-color . "blue")