Thanks a lot for the feedback! Really glad to hear it worked well for your needs.
We’ll be working on enqueuing the script on the frontend to support front-end editing. Custom text for error messages and a move to vanilla JS are also on the roadmap. Appreciate the suggestions, they’ll help make future versions even better!
One more note. Encoded characters count differently in php compared to js, leading to error message while saving. My suggestion would be decoding entities before counting. Eg: swap line 45 in includes/field-customization.php
$char_count = mb_strlen(wp_strip_all_tags($value));
with the following lines:
$clean_text = wp_strip_all_tags($value);
$clean_text = html_entity_decode($clean_text, ENT_QUOTES | ENT_HTML5, 'UTF-8');
$char_count = mb_strlen($clean_text);
