Drush commands for handling Drupal themes

1. Disable a theme directly in config:

vendor/bin/drush config:set core.extension theme.zeendoc 0 -y

2. Set default theme:

vendor/bin/drush config:set system.theme default stark -y

3. Set admin theme:

vendor/bin/drush config:set system.theme admin stark -y

4. Ensure theme is not marked as installed:

vendor/bin/drush config:get core.extension theme

If you still see badtheme listed, remove it explicitly:

vendor/bin/drush config:delete core.extension theme.mytheme -y

(Deleting is more reliable here than setting it to 0.)

5. Sanity check

Run these to confirm everything is consistent:

vendor/bin/drush config:get system.theme
vendor/bin/drush config:get core.extension theme

You want:

• badtheme
• admin ≠ badtheme
• badtheme not listed under core.extension