public static void setLampColorizer()
    {
        BufferedImage img = new BufferedImage(256, 256, BufferedImage.TYPE_INT_ARGB);

        int a = 256, r = 0, g = 0, b = 0, x = 0, y = 0;

        for (; r < 256; r++)
        {
            img.setRGB(x, y, asARGB(a, r, b, g));
            if (x == 255)
            {
                y++;
                x = 0;
            }
            else x++;
        }
        for (; g < 256; g++)
        {
            img.setRGB(x, y, asARGB(a, r, b, g));
            if (x == 255)
            {
                y++;
                x = 0;
            }
            else x++;
        }
        for (; b < 256; b++)
        {
            img.setRGB(x, y, asARGB(a, r, b, g));
            if (x == 255)
            {
                y++;
                x = 0;
            }
            else x++;
        }

        try {
            File outputFile = new File("colorizer.png");
            System.out.println(outputFile.getCanonicalPath());
            ImageIO.write(img, "png", outputFile);
        } catch (IOException e) {
            System.out.println("File not Found: colorizer.png");
        }
    }

    public static int asARGB(int a, int r, int g, int b) {
        return (((((a << 8) + r) << 8) + g) << 8) + b;
    }