The implementation of this article actually shows a perfect example of why obsessing about image size might be entirely the wrong way to look at a problem and a

The implementation of this article actually shows a perfect example of why obsessing about image size might be entirely the wrong way to look at a problem and at best a misguided optimization. The header image of this article is gigantic and mostly black, which is a huge waste of space. In a case like this, it’s not the image size: it’s the way the image was designed, and the fact that maybe an image isn’t even necessary most of the time. At the very least, a smaller image could produce the same desired effect, and probably no image is needed at all. Use a black web page element to produce a large black field, right away ensuring that at most a much smaller image would be needed for the non-black center. Then, use green text (which is more accessible anyway). Once that’s done, probably no image is even needed; and if an image is still needed, it would be really small, taking care of just minor adornments that the text did not provide.