Hi,
I know the thumb size of images is greyed out in the zenpage theme in admin/options/theme with a default size of 95 and you can edit themeoptions.php to change this. But when duplicating the zenpage theme the default greyed out thumb size in admin/options/theme is 100 and editing the duplicate themeoptions.php does not change the default 100 value - strange. I also see in this duplicate the default image size changes from 580 to 595.
I have tried deleting the duplicate and duplicating it again it again but it happens every time.
Thanks
Steve