For those who use DISQUS[/url:3ltxuwp8″>on their website: the CSS code below, which you can enter in the admin > settings > appearence section of DISQUS, makes the DISQUS comment field and comments appear lighter (see below).
May be useful for you as DISQUS so far isn’t offering free design tools or templates (except one).
h3 { color: #999999; font-size: 10pt; text-decoration: none }
#disqus_thread { color: #999999; font-size: 10pt }
#disqus_thread a { color: #999999; font-size: 10pt; text-decoration: none }
.dsq-by { display: none }
.dsq-dc-logo { display: none }
.dsq-options { display: none }
.dsq-comment-header-time { color: #999999; font-size: 10pt }
.dsq-comment-cite { color: #999999; font-size: 10pt }
.dsq-comment-header { color: #999999; bgcolor: #ffffff; font-size: 10pt }
.dsq-widget-user { color: #999999; font-size: 10pt }
.dsq-author-user-35924044 { color: #999999; font-size: 10pt }
.dsq-author-user { color: #999999; font-size: 10pt }
.dsq-service-name { color: #999999; font-size: 10pt }
.dsq-comment-header-time { color: #999999; font-size: 10pt }
.dsq-comment-header-likes { color: #999999; font-size: 10pt }
.dsq-request-user-stat dsq-request-user-stat-liked { color: #999999; font-size: 10pt }
.dsq-request-user-stats-liked { color: #999999; font-size: 10pt }
#dsq-request-user-stats-points { color: #999999; font-size: 10pt }
#dsq-request-user-stats-comments { color: #999999; font-size: 10pt }
#dsq-request-user-stats-liked { color: #999999; font-size: 10pt }
.dsq-request-user-stat dsq-request-user-stat-liked { color: #999999; font-size: 10pt }
.dsq-request-user-stat dsq-request-user-stat-comments { color: #999999; font-size: 10pt }
.dsq-request-user-stat dsq-request-user-stat-points { color: #999999; font-size: 10pt }
#dsq-new-post
.dsq-post-area { color: #999999; font-size: 10pt }