protected function default_bitfield()
{
static $value;
if (isset($value)) {
return $value;
}
// Hardcoded template bitfield to add for new templates
$bitfield = new bitfield();
$bitfield->set(0);
$bitfield->set(1);
$bitfield->set(2);
$bitfield->set(3);
$bitfield->set(4);
$bitfield->set(8);
$bitfield->set(9);
$bitfield->set(11);
$bitfield->set(12);
$value = $bitfield->get_base64();
return $value;
}