Color

type Color =
  | NamedColor
  | HexColor
  | RGBColor
  | number;

Color value accepted by all style properties.

• NamedColor — ANSI name ("red", "cyanBright", …)
• HexColor — hex string ("#ff00ff")
• RGBColor — { r, g, b } object
• number — ANSI 256-color index (0–255)