Don't know if it's intended but I noticed that there are no livestock cars for narrow gauge up to at least 1950, whereas these do exist for road and rail vehicles for a long time.
I looked into this a little. We could adapt the nr 2 ton box van (available 1836 to 1948), to suit. Similar values all around, two livestock capacity. Check the attachment for a concept I've made up from the described box van.
I found a comment in the file for the standard gauge wagons questioning the necessity of livestock wagons in the 19th century. If it weren't for the prohibitive costs of laying road connections to industries, I would agree that back then no one would move their stock differently than driving it across the country (only unusual long trips for livestock could be helped, but then these distances are probably mainline jobs.
Perhaps for the early times (and NG in general), livestock would be carried in cheaper open or caged waggons, like these:
https://www.scienceandindustrymuseum.org.uk/sites/default/files/styles/smg_carousel_zoom/public/854946512.jpg
Ah thanks for the image. I've made a copy of the .blend file available here (http://gofile.me/28Rsd/0CMD5IEip)
See if removing the ceiling helps achieve the look. I won't have another chance to look into this probably until next week.
I have modified the vehicle again to suit the looks more. My problem is however, that the resulting file is somewhat transparent. I'm having trouble tracing the fault here. If someone could check out the problem, here (https://github.com/Spenk009/Pak128.Britain-blends/commit/b5701c22f45af17b427aabe7544472ef0624653b) is the commit adding the file.
The upvote doesn't work, so I just want to thank you for your work.
Thank you very much for your work on this, and apologies for not having had time to look at this hitherto.
I note that you are stuck with an issue relating to transparency; however, I am afraid that I cannot reproduce this: when I try to render this, the resulting files appear to have no more than the appropriate amount of transparency.
Note that transparent pixels are reduced to 256 colors (or 512 colors? IDK about detail) in simutrans.
Less transparent pixels may look worse in the game than non-transparent pixels.
You don't need to worry too much if it is high transparency or black color such as shadow.
Thank you for the help. If the vehicle is fine in that setup, feel free to add it to the pakset. I can also make it and create a pull request, but James is certainly better acquainted with the balance requirements. I suspect I'll find little time until my return home in a week to work on things again.