The hyperlinks are a part of the theme style sheets.  These can be changed, but will require considerable effort to do so.  There are 23 style sheets involved for every theme and we currently have 14 themes.  There are multiple (TNTC) changes to make within each style sheet.  So... a lot of work.  Let's wait to see how the theme voting goes and once we narrow down the themes that we will be keeping, I'll focus on making hyperlink changes if a large number of members want it changed.

BTW, have you voted for your favorite theme yet?