* Feature - Customizer settings for the LearnDash 3.0 template.
* Fix - Fixed issue where adding directory index file causes PHP notices when the directory is not writable.
* Fix - Resolved issue where admins cannot disable all toggles in certain metaboxes.
* Fix - Resolved issue where Additional Question Options won't stay toggled on when only "Randomize Answers" is enabled.
* Fix - Resolved issue where Windows-based servers were unable to use the Import tool.
* Fix - Resolved issue where adding a percentage symbol in password in login form would change the password.
* Fix - Resolved issue where TrustedLogin access link doesn't auto log in the user.
* Tweak - Updated functions: `learndash_put_directory_index_file`.
* Tweak - Added filters: `learndash_customizer_config`, `learndash_customizer_control`, `learndash_customizer_css_priority`, `learndash_customizer_themes`.
* Tweak - Added actions: `learndash_customizer_control_add_after`, `learndash_customizer_control_add_before`, `learndash_customizer_panel_add_after`, `learndash_customizer_panel_add_before`, `learndash_customizer_section_add_after`, `learndash_customizer_section_add_before`, `learndash_customizer_setting_add_after`, `learndash_customizer_setting_add_before`, `learndash_customizer_themes_init_after`, `learndash_customizer_themes_init_before`, `learndash_customizer_theme_init_after`, `learndash_customizer_theme_init_before`.