[@bobhatcher Participant 14 years, 4 months ago]

Ok, well, I figured it out. There are two things you need to worry about when you dump the contents of the bbp-twentyten theme into your child theme folder.

1) The style.css file for bbp-twentyten will overwrite your child theme style.css and that’s the one that tells it to inherit the parent theme’s characteristics. So, what I did was to rename the bbp-twentyten style.css to style-bbpresstwentyten.css before I copied all the files in.

2) The file screenshot.png which is the image that will show on your Themes page will get overwritten too. If you don’t delete or rename that file you will be very confused when you go to the Themes page because you’ll probably be looking for a screenshot of your child theme, not of bbpress twentyten. So, again, I renamed the file in the bbpress-twentyten directory to screenshot-bbpresstwentyten.png

Hopes this helps some others.

Bob