Just downloaded it and tested it. I saw a mod that was yellow, some green, and some white. Also, the check for updates button worked. It seems to be working for me. Maybe being able to update mods from the main mod menu would be nice (though, it takes 5-7.324 seconds to get to the download page that it probably doesn't matter, and if you need to agree to the terms and conditions) Can that be a Pull Request?

Ok thanks @guerringuerrin! Would anybody want to help me with adding the eject units on boat death? Also, the PR is #9211

Also read the commit guidelines and you can always check the Wiki. And this is a very user-friendly guide to the basics of Git.  The hard data is here: https://git-scm.com/learn  

In this case no, it is purely an archeological category. The Frisian pottery is unique to the region and cannot be grouped within the Rhine-Weser or the Elbe traditions. Frisian pottery has its own features and it is spanning a period from the 7th century BC to the 4th century AD. It is highly probable that the original Frisian people has been replaced culturally during the 3rd and 4th century AD. Probably by migrants from the Lower Elbe and Jutland.  It is entirely possible that the earliest Frisians spoke an orphan language since it is naive to believe that we are aware of all the linguistic branches of the Indo-European family. It is very likely that some branches disappeared without leaving any traces or legacy. However, it is important to realize that the Nordwestblock theory has its critics. Many of the arguments in this theory are based on an overinterpretation of onomastics. Several experts have already pointed out that many examples presented as impossible to explain using Celtic or Germanic languages are highly debatable. Furthermore, other experts have pointed out that certain features presented as representing a unique substrate in this region are in fact found in other distant regions. Furthermore, it is quite inconceivable to imagine a language that would serve as an intermediary between the Celtic and Germanic languages. The two language families likely diverged several thousand years ago, well before the Iron Age. The most likely scenario is simply an exchange of words, borrowings from one language to another. But that does not fundamentally alter the structure of the language. If it is a linguistic isolate, there is a good chance that it is a language derived from the Italo-Celtic languages.        

Perhaps this basic guide will be helpful