Theme doesn't match between selection and preview

I select a theme but it doesn’t match what’s in the preview.
Here’s a screenshot using ‘Split’ as an example of what I’m talking about.
Is it that the theme displayed in the picker is one that’s been fully customized?

@zamboknee
The image in the picker is just an image with the name preview_large.jpg (or .png) that is part of the contents of a theme.
RapidWeaver uses these files from all themes to show an example of the theme.
It’s up to the developer to add the image to his/her theme, so it’s not a ‘live’ preview, but an example of what the end-result could be.

Menno.