This new frontend client extension allows users to replace the existing theme spritemap without the need to redeploy a theme. The spritemap should include all icons needed for the scope where it is used.
The Control Panel still uses the admin spritemap.
After registering the client extension, in the page template or page you need to use it, configure it from the design options menu:
To enable this client extension, do it from the Feature Flags management UI: