I would like to resize the 100px x 100px store thumbnail images.
The sizes are supposed to be set under Appearance › Customize › WooCommerce › Product Images
These size settings are missing.
After an exhaustive search, it is obvious that the sizes only appear there if they are not set in functions.php in the theme via (for example):
add_theme_support( 'woocommerce', array( 'thumbnail_image_width' => 200, 'gallery_thumbnail_image_width' => 100, 'single_image_width' => 500, ) );
However, I am using theme Twenty Fifteen, WooCommerce 3.5.5, and Elementor.
The above code is not in the theme.
I have tried disabling all plugins except WooCommerce.
I have tried several different themes, none of which include the add_theme_support code.
Why are the custom images sizes not available?
I would like to avoid having to add code… I'm a programmer but I'm going to be building a bunch of WP/WC sites in the next few months and it would be nice to avoid having to modify the theme or the WP installation for every site.