Applying a tint to an image in java

Question

I am trying to create several similar visual styles for my programs, each with a different color theme. To do this, I have implemented the use of icons to represent the diff

Answer 1

This isn't exactly tinting, its more like applying another layer on it but it works for me:

public static BufferedImage colorImage(BufferedImage loadImg, int red, int green, int blue, int alpha /*Also the intesity*/) {
    Graphics g = loadImg.getGraphics();
    g.setColor(new Color(red, green, blue, alpha));
    g.fillRect(0, 0, loadImg.getWidth(), loadImg.getHeight());
    g.dispose();
    return loadImg;
}