> One small piece of criticism I have is that the font size is a little big. Perhaps if it was more consistent with the font size on the tabs it would look better?
Thanks for pointing that out. I also realized that the buttons needed to be moved lower, because the second gap where I had placed them only occured where there were nested tabs. I moved them lower so they will work in all sections of the CMS.
Example of why I had to move the buttons lower down the page: http://www.elijahlofgren.com/silverstripe/images/usability/13-ff2-reason-very-bottom.png
Fixed. New before and after screenshots and patch: http://www.elijahlofgren.com/silverstripe/images/usability/13-buttons-bottom-right-lower-smaller-before-after-screenshots.html
>> All in all though, I think it's a great change. Elijah, are the buttons always fixed in that position? For example, if the TinyMCE editor got larger, and the page required scrolling, would the buttons be in a fixed position, or would they be at the bottom once you've scrolled all the way down?
They are always fixed in the correct position because of the use of position: absolute. :)
Thank you very much for your encouraging and helpful feedback,