Title: Adding theme features on Multiply Math game

[RithikaSundaram]

Which pre-existing JavaScript project will you be working on?

i had worked on changing the UI design of the project

Describe your enhancement/improvement

i would like to add the light and dark theme functionality in the UI by having this feature the user will be able to change the theme as per their wish

Anything you need to say to the Reviewers

No

Add any other context or relevant screenshots about the enhancement here.

No response