predefinedColorNames
A map of predefined Compose Color constants to their Kotlin code representations.
Used by ColorField.valueCode to output readable color names (e.g., Color.Red) instead of hex values when the selected color matches a predefined constant.
Also used by withPredefinedColorHint to provide quick-select hints for common colors.
Includes the following colors:
Primary: Red, Green, Blue, Black, White
Secondary: Cyan, Magenta, Yellow
Grays: Gray, DarkGray, LightGray
Special: Transparent, Unspecified