As you can see I removed the background colors. This will only work for foreground colors, bold and underline.
PHPBB forums don't allow the users to define background colors. I removed them on purpose with this routine.

alias -l RemBackCol {
  var %bc, %bcc $1-
  while ($regex(%bcc,/([0-9]{1,2},[0-9]{1,2})/)) {
    noop = $regsub(%bcc,/([0-9]{1,2},[0-9]{1,2})/,$gettok($regml($regml(0)),1,44),%bc)
    %bcc = %bc
  }
  return $iif(%bc,%bc,$1-)
}

I also removed them for html because I think it would be ridiculous to change the background of a form each time there is a background change in irc. I also changed white to black and color stops to black.

MuaHahAhaHahAhaHaaAaaAaaAaaaaa!!!!!!!