public static BufferedImage cellImage(PixelType type){
    if(type == PixelType.NOFILL){
        return getImage(101, false);
    }else if(type == PixelType.FILL){
        return getImage(102, false);
    }else if(type == PixelType.CROSS){
        return getImage(103, false);
    }else if(type == PixelType.GUESS_NOFILL){
        return getImage(104, false);
    }else if(type == PixelType.GUESS_FILL){
        return getImage(105, false);
    }else if(type == PixelType.GUESS_CROSS){
        return getImage(106, false);
    }else if(type == PixelType.CHECK){
        return getImage(107, false);
    }else{
        return null;
    }
  }