Desktop v 26.8.4.3664, Win10 and Win11.
The Custom Theme page is blank within the Manager program. When I open the page in a browser I get the following error message,
Looks like there’s a problem with this site
https://www.manager.io/extensions/custom-themes/index.html sent back an error.
Error code: 404 Not Found
Check to make sure you’ve typed the website address correctly.