This string is hardcoded and cannot be translated

Hello.

As per Prime Slider Addons for Elementor, this string is hard-coded in this .css file and cannot be translated:

elementor-panel-page-settings-controls .bdt-ep-disabled-control .elementor-control-field:after,#elementor-panel #elementor-controls .bdt-ep-disabled-control .elementor-control-field:after{content:"This is a pro control, available with Element Pack Pro version.";

https://plugins.trac.wordpress.org/browser/bdthemes-element-pack-lite/tags/8.6.1/assets/css/ep-editor.css

Thanks.