So the Victoria!, Urban, Working Class District Theme is now available on Steam!
I have tested it using the Assets from Steam and it is working.
As yet, it only includes the Working Class Level 1 Low Density Residential but I will be constantly adding to it.
My Assets are all compatible with After dark and Snowfall. (Frankly I am insanely excited about building trams)
The Last image is an in-game test of my Level Two houses levelling up from the Level Ones.