Here is a quick update to the user interface, after the larger former release (v0.6.0 release).
I added a list of currently active effects (like wounds) on the screen displayed as icons. Hovering the mouse will show a description. Also, when right clicking a npc, a nice looking and much more informative menu will popup. Moving the mouse outside of the popup window auto close it. Keyboard shortcuts are still working when this popup is active.
I also added 2 zombie types. They are a bit less common than standard ones, who have been tweaked too.