Made a bit more headway. At this point, this is a script not an add-on, so it only runs from the text editor in Blender. Just import a Victoria 4 figure into an empty scene, copy-paste the code into the text editor, change the path on line 107 to reflect where your image files are stored, and the name of the file to reflect which file you use for limbs, and click Run Script.

Eventually, I might make this into a sort of add-on. Just like everything in open-source, we create stuff first for ourselves, and then share it around because we have a generous, community-minded spirit. Actually, I enjoy sharing - it's nice to share - but who knows why folks share stuff... reputation? get your name out there? dunno. Anyway, FWIW, here it is, so far:

# simpleSkinShader001.py
# 
# Copyright (c) 23-Oct-2015, Robyn Hahn. Heaps of borrowed code.
#
# ***** BEGIN GPL LICENSE BLOCK *****
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# ***** END GPL LICENCE BLOCK *****

bl_info = {
    "name": "Simple skin shader for Poser Figures",
    "author": "Robyn Hahn",
    "version": (0, 01, 1),
    "blender": (2, 76, 0),
    "location": "-= Not a Tool For Blender, Yet =-",
    "description": "Generates a simple Cycles shader for a Poser figure",
    "warning": "early development",
    "wiki_url": "http://0.0.0.1",
    "category": "Simple Material Script"}

import bpy
import os.path

# sets renderer to Cycles
if bpy.context.scene.render.engine == 'BLENDER_RENDER':
    bpy.context.scene.render.engine = 'CYCLES'


# make sure your figure is selected and nothing else
bpy.ops.object.select_all(action='DESELECT')
selObj = bpy.data.objects['Katie-reposed']
selObj.select = True


# function generates node set (shader)
def buildShader(cImgClr, cImgBmp=None):
    selMats = selObj.active_material
    
    selMats.use_nodes = True
    treeNodes = selMats.node_tree
    nodeLinks = treeNodes.links
    
    # clears existing nodes, if any
    for n in treeNodes.nodes:
        treeNodes.nodes.remove(n)
        
    # create nodes: Texture Coordinate and Mapping
    shTcd = treeNodes.nodes.new('ShaderNodeTexCoord')
    shMap = treeNodes.nodes.new('ShaderNodeMapping')
    
    # create nodes: Image Texture
    sImgC = treeNodes.nodes.get('ShaderNodeTexImage')
    if sImgC is None:
        sImgC = treeNodes.nodes.new('ShaderNodeTexImage')    
    sImgC.image = cImgClr
    
    # create nodes: Diffuse
    shDif = treeNodes.nodes.get('ShaderNodeBsdfDiffuse')
    if shDif is None:
        shDif = treeNodes.nodes.new('ShaderNodeBsdfDiffuse')
    
    # create nodes: Glossy and Mix
    shGls = treeNodes.nodes.new('ShaderNodeBsdfGlossy')
    shMix = treeNodes.nodes.new('ShaderNodeMixShader')
    
    # create node: Material Output (sort-of like PoserSurface)
    shOut = treeNodes.nodes.get('ShaderNodeOutputMaterial')
    if shOut is None:
        shOut = treeNodes.nodes.new('ShaderNodeOutputMaterial')

    # Set node locations, roughly
    shTcd.location = -850, 300
    shMap.location = -600, 300
    sImgC.location = -200, 300
    shDif.location = 0, 400
    shGls.location = 0, 200
    shMix.location = 200, 300
    shOut.location = 400, 300

    # Link nodes
    nodeLinks.new(shTcd.outputs[2], shMap.inputs[0])
    nodeLinks.new(shMap.outputs[0], sImgC.inputs[0])
    nodeLinks.new(sImgC.outputs[0], shDif.inputs[0])
    nodeLinks.new(shDif.outputs[0], shMix.inputs[1])
    nodeLinks.new(shGls.outputs[0], shMix.inputs[2])
    nodeLinks.new(shMix.outputs[0], shOut.inputs[0])
    return selMats

bpy.context.object.active_material_index = 0

"""So far, this will set the skin shader for any limbs materials"""
for i in range(27):
    selObj.active_material_index = i
    path = '/home/robyn/Documents/Blender/Projects/AllTextures/AllSkin/textures/'
    imgFile = 'Syri_Limbs.jpg'
    fullImg = path + imgFile
    img = bpy.data.images.load(filepath = fullImg)
    matName = selObj.active_material.name
    matType = matName[0:1]
    if matType == '3':
        newMat = buildShader(img)

Monterey/Mint21.x/Win10 - Blender3.x - PP11.3(cm) - Musescore3.6.2

Wir sind gewohnt, daß die Menschen verhöhnen was sie nicht verstehen
[it is clear that humans have contempt for that which they do not understand] 

Metaphor of Chooks