The bits I was confused with were:
1. Once I had installed the desired language I expected its color to change from grey to black.
I also semi expected it to jump up to the top of the list for use as a system language.
2. It was not obvious to me that I had to click on the greyed-out language and drag it up the list.
Because it was grey I thought it was not available.
However it was obvious to me that I could rearrange the black colored languages.
To change the system language I had to rely on a "how to": www.howtogeek. com/howto/ 17528/change- the-user- interface- language- in-ubuntu/
http://
The bits I was confused with were:
1. Once I had installed the desired language I expected its color to change from grey to black.
I also semi expected it to jump up to the top of the list for use as a system language.
2. It was not obvious to me that I had to click on the greyed-out language and drag it up the list.
Because it was grey I thought it was not available.
However it was obvious to me that I could rearrange the black colored languages.