Help does not list what variables are accepted by the -o flag

[sm-Fifteen]

In order to know how to override a certain field, one has to look through the source of the script and rely on a certain amount of trial and error for some less intuitive codepaths.

So far, I've found that distro, pkgs, shell_type, WM and Win_theme all affect their respective fields, but I've yet to find a way to change the listed kernel version (It's not kernel).

DE gets set to 'Not Present' regardless of what value it's overriden to, as do every GTK fields (gtk2Theme, gtk3Theme, gtkIcons and gtkFonts), which may be a bug worth filing separately.

uptime gets unset before its value is fetched, which is probably intentional, but myUser, myHost , cpu, gpu, mem, and xResolution do not and still won't accept overrides.

Regardless, all working overrides should probably be listed in the usage manual.