Hello. I searched this forum high and low and could not find or understand the answer on how to align the thumbnails. Well, I figured it out today  ;D. First go find the css file that you are using for the thumbnail layout. It will either be sigpro_default.css or sigpro_yb.css. Edit this line "{clear:both;margin-right:auto;margin-left:auto;padding:0px;display:block;/*position:relative;*/ width: 100%;}" I changed the 100% to 85%. Then I changed the size of my thumbnails in the plugin manager until I got the result that I wanted. It is not perfectly aligned but it is close. Much better than to start with.

Nice!  ;)
Thank you for the feedback my friend!