WonderCMS community

coming late to this, but for the sake of organization i would say every filetype should have their own directory e.g.

*pictures -> for theme photos
*css -> for any custom stylesheet
|_fonts -> a sub directory on CSS folder for fonts to be used on any themes
*js -> for any local JavaScript file to ...

Do I have to host a new theme, that I want to use by my own (not sharing) within my private GIT repository
No!
If you just want to mess with an existing theme and not share the changes with anyone else then you just upload the new/changed files to your server.
(and remember never to accept the ...

i am having the same problem, i do not use GitHub (never had) so the whole repo thing is confusing to me...anybody can provide more input?