How do authors add in "title pictures" to their chapters?

[Loudbeat]

How to make quick and easy chapter headers

So, I see a lot of games come in without chapters headers, and I think this is a missed opportunity, because good looking chapter headers don’t have to be difficult. In fact, you can probably do them yourself for free! So, because I wanted to, I drew up a quick and easy walkthrough of how to make a good looking chapter headers in GIMP. For information on color in headers, see this post. First, you’re going to want to download GIMP. I recommend GIMP because it’s free, it’s available for Windows…

Here’s an excellent guide to doing exactly what you’re looking for.