[sirinsidiator]

Nice writeup. Two small additions:
You don't need to pass the stringId as a string, unless you want to use the second argument to GetString:

GetString("SI_ITEMTYPE0") -- works
GetString(SI_ITEMTYPE0) -- works
GetString(SI_ITEMTYPE, ITEMTYPE_NONE) -- doesn't work
GetString("SI_ITEMTYPE", ITEMTYPE_NONE) -- works

You can directly assign the stringId in LAM since a few versions ago:

--LAM optionsPanel array
    local optionsPanel = {
           {
                type = 'header',
                name = SI_WINDOW_TITLE_GRAPHICS_OPTIONS,
            },
    ...
    }