I really use the following method a lot, and it's sibling methods:
g.drawImage(image, x, y, color)
What I like to be able to do is specify the image color for multiple images without specifying it in the parameters of the draw method, e.g.:
g.drawImage(img, x, y);
g.setImageColor(Color.white); // restore default
The reason I ask for this is because not all image drawing methods contain that color parameter, and I think it would be a nice easy feature to add that helps a lot.