function StyledUnicodeChar(uchar, foreground, underline, italics, background, flash) {
    this.uchar = void 0;
    this.penState = void 0;
    this.uchar = uchar || ' '; // unicode character

    this.penState = new PenState(foreground, underline, italics, background, flash);
  }
Unicode character with styling and background.
@constructor