The admin modules have various parameters in the advanced tab.

However several of them have no impact at all as there is no code in the module chrome that will use them.

• bootstrap_size - no impact
• header_tag - no impact

Either the chrome needs to be updated to work or the params should be removed and then the following code from the chrome should also be removed

$bootstrapSize  = (int) $params->get('bootstrap_size', 6);
$moduleClass    = $bootstrapSize ? 'col-md-' . $bootstrapSize : 'col-md-12';
$headerTag      = htmlspecialchars($params->get('header_tag', 'h2'), ENT_QUOTES, 'UTF-8');