children theme not working

I am looking to update my existing wordpress site from the 2022 theme, to 2023. I thought the new Editor would make it easier to make adjustments going forward. I have currently have a child theme that has become bloated, and I would like to slim my css.

A child theme is needed, because I want to make customizations to the style.css and theme.json, and would like to be able to update the theme without losing my changes. Mainly, I need to add custom fonts.

I have tried many approaches to create the child theme, but I can not get the 2023 theme to acknowledge the style.css or theme.json from the child theme.

This is what I have tried to enable a child theme in 2023:

• manual create child css, json, php
  • https://learn.wordpress.org/lesson-plan/create-a-basic-child-theme-for-block-themes/
  • https://developer.wordpress.org/themes/advanced-topics/child-themes/
• plugin – https://wordpress.org/plugins/create-block-theme/
• plugin – https://wordpress.org/plugins/child-theme-wizard/

This may be a permissions issue. I have access to the FTP server, and permissions seem to be the same as my previous theme, as well as the rest of my site, but when I try to activate fonts with Create Block Theme, I get an error “You do not have sufficient permission to edit the theme.”

I can edit the files in the main theme. Making changes to style.css or theme.json in the main theme are reflected on the site. Nothing added to the child theme is recognized, even if it is a new style, not modifying a theme style.

Are child themes possible for a “block theme”? Is this expected behavior?

The page I need help with: [log in to see the link]