Header logo "alt tag"

Hi in the upcoming Customizr release there’s a new filter to easily change it, named tc_logo_alt => https://github.com/Nikeo/customizr/blob/dev/inc/parts/class-header-header_main.php#L285

If you don’t want to upgrade manually, you should wait till theme reviewers set it live ??

Meantime you can use this other snippet:
https://www.ads-software.com/support/topic/how-to-change-alt-tag-logo?replies=5#post-6695934

Hope this helps.