const theme = {
  palette: {
    background: string,
    black: string,
    white: string,
    white600: string,
    white700: string,
    white800: string,
    white900: string,
    gray100: string,
    gray200: string,
    gray300: string,
    gray400: string,
    gray: string,
    gray500: string,
    gray600: string,
    gray700: string,
    gray800: string,
    gray900: string,
    default: string,
    defaultInverted: string,
    primaryTint: string,
    primaryTintInverted: string,
    primary100: string,
    primary200: string,
    primary300: string,
    primary400: string,
    primary: string,
    primaryInverted: string,
    primary500: string,
    primary600: string,
    primary700: string,
    primary800: string,
    primary900: string,
    secondaryTint: string,
    secondaryTintInverted: string,
    secondary100: string,
    secondary200: string,
    secondary300: string,
    secondary400: string,
    secondary: string,
    secondaryInverted: string,
    secondary500: string,
    secondary600: string,
    secondary700: string,
    secondary800: string,
    secondary900: string,
    infoTint: string,
    infoTintInverted: string,
    info100: string,
    info200: string,
    info300: string,
    info400: string,
    info: string,
    infoInverted: string,
    info500: string,
    info600: string,
    info700: string,
    info800: string,
    info900: string,
    successTint: string,
    successTintInverted: string,
    success100: string,
    success200: string,
    success300: string,
    success400: string,
    success: string,
    successInverted: string,
    success500: string,
    success600: string,
    success700: string,
    success800: string,
    success900: string,
    dangerTint: string,
    dangerTintInverted: string,
    danger100: string,
    danger200: string,
    danger300: string,
    danger400: string,
    danger: string,
    dangerInverted: string,
    danger500: string,
    danger600: string,
    danger700: string,
    danger800: string,
    danger900: string,
    warningTint: string,
    warningTintInverted: string,
    warning100: string,
    warning200: string,
    warning300: string,
    warning400: string,
    warning: string,
    warningInverted: string,
    warning500: string,
    warning600: string,
    warning700: string,
    warning800: string,
    warning900: string,
    // Plus your own definitions...
    [key: string]: string,
    // e.g. fullySickBlue: '#145abc'
  }
}