There is no such feature in Mysql. You best doing this 'logic' in the application that inserts the row.
Or you could have the default 'empty' and then the 'display' code makes the decision what to use
if (empty($img_path))
$img_path = ($isActive)?'active.png':'solico.png';
Another reason to do this at 'display' time, rather than in the database. If the active column changes, persumably the default would have change, so it would make that 'update' statement rather messy, doing at display time, avoids having to keep the database in sync.