Hi, Dan
You’ll have to change that in the theme’s CSS.
Just login to your site and go to Appearance > Edit CSS and you will be presented with a CSS Stylesheet Editor that you can use to write custom code to override the defaults.
In Twenty Ten the fonts definitions begin on line 113 of the styles.css
file. Here’s what you’ll find there:
/* =Fonts
-------------------------------------------------------------- */
body,
input,
textarea,
.page-title span,
.pingback a.url {
font-family: Georgia, "Bitstream Charter", serif;
}
h3#comments-title,
h3#reply-title,
#access .menu,
#access div.menu ul,
#cancel-comment-reply-link,
.form-allowed-tags,
#site-info,
#site-title,
#wp-calendar,
.comment-meta,
.comment-body tr th,
.comment-body thead th,
.entry-content label,
.entry-content tr th,
.entry-content thead th,
.entry-meta,
.entry-title,
.entry-utility,
#respond label,
.navigation,
.page-title,
.pingback p,
.reply,
.widget-title,
.wp-caption-text {
font-family: "Helvetica Neue", Arial, Helvetica, "Nimbus Sans L", sans-serif;
}
input[type="submit"] {
font-family: "Helvetica Neue", Arial, Helvetica, "Nimbus Sans L", sans-serif;
}
pre {
font-family: "Courier 10 Pitch", Courier, monospace;
}
code {
font-family: Monaco, Consolas, "Andale Mono", "DejaVu Sans Mono", monospace;
}
Cheers,
-Diogo