@RabidAvali it is possible, however only the icons and no other feature (custom workshops)
Take the file interface_bits_labor_outlands, rename it interface_bits_labor, and put it into Dwarf Fortress\data\vanilla\vanilla_interface\graphics\images

is there anyway to add this to a playthrough post world gen?

what the white checkmark icon in dwarf labour tab mean?

Thanks!

@Vanguard In the build->workshop-> Armaments/armoury
Once a workshop is built, select it, hit the "Workers" tab, select the dwarf you want to bestow the labor icon to.

How do I make use of the bonus two work icons in the labor screen? I might be missing something in your explanation.

I think the EARLIEST_COMPATIBLE_NUMERIC_VERSION and NUMERIC_VERSION tag in your mod don't respect the rule for le info.txt
It should be integer number according to the wiki, it through an error in log.

@Anopiko Less generic labors all have their own workshop icons (butcher shop, kitchen, presser etc) and labors that usually have quality levels are normally limited to a handful of dwarves at most, which is suitable for using with workshop ownership. A farmer, for example, would not have the time to also be brewing or pressing, as they're too busy with the farming process (and farming already has its own labor icon as well). Carpenters are hardly needed in large numbers either.

Each workshop has its own unique labor icon from setting workshop ownership. This is what led me to the current set of icons, along with trying to add icons for labors that usually don't really have any, like spinner and cheesemaker for example. It could also be possible, even fairly simple, to add those unique workshop labors icons as replacement for the roman numerals, but I didn't see the point of doing it, since workshop ownership is an option. I will keep your feedback in mind, thank you.

5) Generic crafts (icon: a table with a scroll, gem, bone, glass and a gear). For gem cutters, bone crafters, glass workers, mechanics and some other specialized crafters like papermakers)
6) Textile industry (icon: scissors, thread and needle, stack of cloth) - for all kind of people related to textile industry (and even leather workers and doctors)

The last two might be whatever, for example one that mark military people (like your icon with armor and money) and one could be, a book or a scroll, to mark peoples assigned in locations

@PrivateRiem ah, I get it, thank you. By the way, nice work, I've been using them for a couple of months and it is much better than the numerals. The major drawback for me is that the icons are too generic, I with there would be icons that are more or less describe one of the major areas of professions. If you're still taking requests, this set would work, in my opinion:

1) Metalsmithing (icon: a hammer and an anvil). For all types of smiths.
2) Stoneworking (icon: a boulder, a stone block and a chisel). For masons, stone carvers, stone crafters.
3) Woodworking (icon: log stack, workbench and a handsaw). For carpenters, wood crafters.
4) Farming (icon: a barrel and a harmful of herbs): For cooks, brewers, growers, plant gatherers, pressers, millers, cheese makers etc as many of these jobs somehow related to plants and barrels

@anopiko In the armaments and Armoury workshops, selecting the "workers" tab and assigning the corresponding dwarves will give them the labor icon for the respective labors. This is mostly cosmetic.

I don't get how to use labor icons related to armaments and armoury. They just don't appear anywhere.

Very nice, copy contents of mod's graphics folder to the vanilla interface graphics folder if you don't want to restart your worlds