Package: installation-guide Version: 20230508+deb12u1 Commands that users can type into a terminal are marked up as "span class="command"", but I don't think the CSS defines how to format it <https://www.debian.org/releases/stable/amd64/install.css>. Commands are therefore formatted using the same font as the normal text: "liberation sans" which is the 1st font option for the body in the CSS. If the user has that font, commands show lowercase "L"s and uppercase "i"s looking almost exactly the same, e.g. at <https://www.debian.org/releases/stable/amd64/ch04s03.en.html>. I'd suggest formatting Commands in the CSS with a font that makes it easier to spot the difference, since a person may be looking a the guide on a different computer than the one they're typing the Commands on and not copying and pasting them. The font for Code is "liberation mono", which like "DejaVu Sans Mono Book" is sans serif except for l, I, 1, 0, i, j, and J.