parseColor
Parse color string into {@link ParsedColorValue} (if possible). Color value will first be matched to theme object before parsing. See also color.tests.ts for more examples.
@example
Parseable strings:
'red' // From theme, if 'red' is available
'red-100' // From theme, plus scale
'red-100/20' // From theme, plus scale/opacity
'[rgb(100,2,3)]/[var(--op)]' // Bracket with rgb color and bracket with opacity