* @param yellow the intensity of blue
     * @param black the intensity of black
     */

    public void setCMYKColorStroke(final int cyan, final int magenta, final int yellow, final int black) {
        content.append((float)(cyan & 0xFF) / 0xFF);
        content.append(' ');
        content.append((float)(magenta & 0xFF) / 0xFF);
        content.append(' ');
        content.append((float)(yellow & 0xFF) / 0xFF);
        content.append(' ');
        content.append((float)(black & 0xFF) / 0xFF);
        content.append(" K").append_i(separator);
    }