On Sat, 24 Oct 2015 23:32:47 +0800 Michele Calgaro <michele.calgaro@...> wrote: > As far as I can google it, CC BY-SA 4.0 is one-way compatible with GPL 3.0, but I have found no mention about CC > BY-NC-SA 4.0 and GPL 3.0 compatibility. > - -NC- stands for Non-Commercial and should therefore not be a problem with GPL 3.0, but unless there is a clear > indication that CC BY-NC-SA 4.0 is GPL 3.0, we can not usd the theme in TDE. Drat. It's incompatible, because the GPL specifies that you aren't allowed to add additional restrictions (IIRC, anyway), and "non-commercial use only" is an additional restriction. The Alladin Free Public License is GPL-incompatible because of a similar non-commercial requirement, so look that up if you want the exact reasoning. E. Liddell