K-Meleon's documentation on
About: Options doesn't include the pages "about:" and "about:credits".
"about:" can be used to view the version of Mozilla that is used, while "about:credits" (there's a link to it in the "about:" page) links to the contributors credits page of Mozilla (requires 'Net connection).
There's something strange in the "about:" page. The image will be displayed even if you turn off the image loading.
I also have one question. What is "about:mozilla"? The text in the page is taken from "The Book of Mozilla", which I've never heard of.