Do you like phpBB3 or invision better? Invision is the one with the square buttons and the bluish/grayish background to the header at the top of the page. The phpBB3 version is the one with more circular buttons and a dark blue background for the header at the top, plus a little image on top of it, and topic icons like solved and work in progress. You can also post here if you have specific feedback on which parts you like about certain ones.