This folder contains the frontend & backend code for various extensions & plugins used in Oppia codebase.
- actions: Definitions of domain classes for various user actions on Oppia website.
- answer_summarizers: Model definitions for answer summarizers.
- ckeditor_plugins: Plugins used in CKEditor RTE.
- interactions: The frontend & backend code for interactions supported on Oppia website.
- objects: The frontend & backend code for various typed editors like boolean editor, filepath editor etc.
- rich_text_components: The frontend & backend code for rich text components supported on Oppia RTE.
- value_generators: The frontend & backend code for value generators used in Oppia.
- visualizations: The frontend & backend code for visualizations used in Oppia.