Please upgrade to 2.2 here.
The 2.0 and 2.1 branches are no longer being updated.
Pros and Cons of Nebula Theme?
This discussion is related to the Nebula
Lots of pros which you will discover when you start using it.
For cons, since its first version I may have overlooked a thing or two. Do let me know and I will fix it asap.
Vanilla is sweet & support is great, to encourage volunteers, please donate.