I want to change the text “Show sidebar” to “Filters” and I want to change 3 line icon to “Filter icon” (https://fontawesome.com/icons/filter?s=solid) and do as you say but it’s not showing 🙁
2. Please, try to enable the “Always use” option for the “Font Awesome library” field in Theme Settings -> Performance -> Fonts & Icons and check the issue again.