According to dio5's link, SS checks the 'mysite (or other name given to site folder)' folder first, so that's the reason I put everything in 'mysite'. For me, mysite is my complete project folder. Also, I don't really see the need for themes when developing custom sites for clients, but perhaps I'm a little old fashioned here ;)
We've moved the forum!
Please use forum.silverstripe.org for any new questions
(announcement).
The forum archive will stick around, but will be read only.
You can also use our Slack channel
or StackOverflow to ask for help.
Check out our community overview for more options to contribute.