This thread probably belongs here instead:
https://forums.elderscrollsonline.com/en/categories/add-ons-and-ui-mods

Ancillae_Secretorum wrote: »

In proper english, you don't capitalize everything, so it should be "heavy sack", not "Heavy Sack".

Not in this context. When you are using "heavy sack" in a sentence, e.g., in the game's help text, it should be lowercase. But when it's used as the name of the interaction object, the title-case capitalization is correct.

Ancillae_Secretorum wrote: »

French and Spanish are the most ridiculous, with extra characters that have no meaning : "saco pesado^f" and "sac lourd^m"

Those are formatting tags. In this specific case, it's denoting the gender of the object, which is why you see it in French and Spanish since their nouns are gendered, but you don't see these tags in English.

In any case, these strings that you see are raw and are not intended to be displayed as-is. They are passed through a formatter that will do things such as remove the ^ formatting tags and adjust capitalization based on the context. There are many instances where the raw string is lower-case, but appears as title-cased in the final display. IIRC, the interaction name will get title-cased by the formatter, so all the strings that you see here should appear in title-case in the actual UI.

Yes, there are inconsistencies in how casing is handled; e.g., for names English usually has the original raw strings pre-title-cased, while it's much more common for the other languages to have their raw strings stored as lower case with the case adjusted in the final format. I suspect this is just how the various different localizers handle things. If you look in the game's credits, many of the localizations are handled by external entities, so it's not surprising that one language's localizers like to do things a bit differently than another language's, but in the end, it's the final post-formatter output that matters, not the raw input.

Ancillae_Secretorum wrote: »

Your reply also begs more questions. German has three genders. Russian too. But there are no formatting tags in russian, I am absolutely sure of it, and don't think there are in german, though I won't swear until I check.

Here are the exact raw strings for the titular use of "Heavy Sack".

["19398485-0-1811"] = {
	de = "schwerer Sack^m",
	en = "Heavy Sack",
	es = "saco pesado^m",
	fr = "sac lourd^m",
	jp = "重い袋",
	ru = "Тяжелый мешок",
	zh = "重麻袋",
},

So, the thing about the gender formatting tags is that in the vast, vast majority of cases, the formatter doesn't actually do anything with them. They're relevant if the formatter is asked to place an article in front, in which case it needs to know if that should be "La" or "Le" in French, for example. But that sort of thing happens very rarely in the game' UI.

Some localizers tag everything, because they probably don't know how a string is going to be used, so better to just make sure everything is tagged, just in case it gets used in a situation where it matters.

And some localizers are more like "we'll tag it if we actually need to".

This is just another example of the differences in localization convention. Since the game's UI isn't adding an article such as "The" or "Le" in front when it displays something in the interact prompt, the gender tags in this context are irrelevant, so it didn't matter that the Russians chose to omit them.

Thanks for this very useful info