code: function applyContrastColors(config) {
    const { colors } = config;
  
    return {
      ...config,
      colors: {
        ...colors,
        primaryContrast: getContrastColor(colors.primary, colors),
        accentContrast: getContrastColor(colors.accent, colors),
        focus: getFocusColor(colors),
      },
    };
  }
docs: Applies the contrast and focus colors to the colors configuration.
  @param {Object} config The complete theme configuration.
  @return {Object}