A custom question theme that uses the Select2 component to insert a searchable select element to choose an option of a LimeSurvey list-dropdown type question.
Compatible with LimeSurvey versions 3.x - 5.x.
Installation instructions in the README.md file.
Sample survey in /Searchable-Dropdown/survey/questions/answer/list_dropdown/assets/demo/.
Thanks to the folks at Select2 (https://select2.org/) for their great component.