in lib.php [41:57]
function theme_boost_o365teams_pluginfile($course, $cm, $context, $filearea, $args, $forcedownload, array $options = array()) {
static $theme;
if (empty($theme)) {
$theme = theme_config::load('boost_o365teams');
}
if ($context->contextlevel == CONTEXT_SYSTEM) {
if ($filearea === 'footer_stamp') {
return $theme->setting_file_serve('footer_stamp', $args, $forcedownload, $options);
} else {
send_file_not_found();
}
} else {
send_file_not_found();
}
}