Hi there, fist of all thank you for the great work you are doing! I really love Stronghold and just discovered your project. Its amazing. I really like the idea of building an improved version of Stronghold in with an Open Source license.
What I generally don’t like about software development is that people only talk about the things which do not work. However that’s the only way to improve the (already great) version of the game. So here we go:
Red Numbers
When I have 11/12 peasant the number shows green when I have 12/12 the number is red -> I don’t like that. It would be green unless I have not enough peasant to occupy my buildings the numbers should show green.
Trees not growing
A mechanic to let trees grow seems not to be implemented yet.
Depth of field
I really hate the DOF blur when you zoom in. I would either completely remove it or make an option for it in the menu.
Mission two is broke
As someone already stated it is currently not possible to build maces. Whatever you klick only swords will be produced.
Armory bug
In mission two I had two armories. For mor space I build three additional once in a row (5 in row) and demolished the one in the middle. My workers will run through the added two armories until some weapons are stored in them.
In general, I think it is complaining on a high level and probably you are already aware of most of the issues. However I wanted to give you a short feedback and express my appreciation for your work.
1. Red numbers
I disagree. If you have 12 peasants and 12 workers, that leaves you with 0 room for recruiting soldiers or engineers. And it's better to bring attention to it earlier rather than later when you're getting attacked.
2. Yep, not implemented yet.
3. Will make it an option as some people like it.
4. Will fix.
5. I'm not sure why we even allow destruction of armories in the first place, because I don't think we handle that gracefully. There is a separate bug where units will pass through buildings placed after they've found a path, so it kinda makes sense.
Thank you for the interest!
Thank you for your quick replay.
1. Red numbers
I probably was phrasing it a bit unclear. Even if I have 11 workers and 6 free peasants the number will be red. See screenshot below. 
5. It was indeed not about the separation or emptiness of the armories but because of the routing done before building them. I did another test about it yesterday.
I do believe it makes sense to give players the option to destroy armories. For me the building placement is mainly about efficiency but a lot of players do want to build pretty castles. Replacing the armory or even separating it gives players the possibility to fine tune there castle designs.
The separation of the armories as I described it (destroy the one in the middle) was also in the original game possible, if I remember correctly.