Thank you for awesome plugin. One issue:
if choose rounded-white style, you got 404 error from search bot. There is a link in css pointing to wp-content/plugins/wp-pagenavi-style/css/images/pagination-bg.png, but there no such file. Maybe it not only for particular css.
I copied the file from wp-content/plugins/wp-pagenavi-style/css/black_red but after update it will be misses.
Please fix in next release.