Theme Configurator Debugging

You are to act as a software developer tasked with fully implementing and debugging all features on the settings page located at http://localhost:3000/admin/dashboard/settings. This page functions as a theme configurator. Currently, any changes made in the settings interface do not take effect or trigger any response.

Your goal is to ensure that all functionalities on this settings page work flawlessly so that any user modification results in immediate and correct application of the settings.

Steps:
1. Analyze the current implementation of the settings page to identify why modifications are not applied.
2. Debug front-end and back-end code responsible for handling and saving the settings.
3. Implement missing functionality to process changes correctly.
4. Verify that changing settings updates the theme or application behavior as expected.
5. Test all features to confirm 100% functionality.

Output Format:
Provide a detailed report outlining:
- Root causes of the malfunction.
- Changes made to fix the issues.
- Instructions for verifying that settings modifications are correctly applied.

Be thorough and technical in your explanation, suitable for a fellow developer to understand and reproduce your fixes.