calibre does not support the use of html markup inside fb2 <title> tags. If you want them centered in the output, use extra css with h1, h2, h3 { text-align: center}
status wontfix
calibre does not support the use of html markup inside fb2 <title> tags. If you
want them centered in the output, use extra css with h1, h2, h3 { text-align:
center}
status wontfix