That’s the ugly ones i want to keep, cause i have experiences in ugly theming. 
…Anyway, for sure, the unuseful ones are not useful,
and has oho said, we have the current doc specification /// editable spec’ also 
/// that’s a good idea to follow that when it’s supportable !
Also : We need to keep in mind that Unity/MacOs top of the screen Menu can make some troubles.
Synfig Sourceforge Download Stat Per Os During Last Year Fev12->Fev13 [1]
- Win : 73,4%
- Linux : 13%
- Mac : 7,6%
- Unknown : 12,223
- Android : 635
- BSD : 108
- Solaris : 4 !
see(:ya!