If the theme is available on SilverStripe, my sandbox widget allows you to preview it. In a future version, you'll be able to upload a theme to preview, but that is kinda broked (so disabled) in the current version.
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.
