
An example https://material-ui.com/ theme switcher.
The Material UI Theme Switcher is an innovative tool that allows users to seamlessly switch between different themes in their React applications. Based on a well-crafted blog post, this demonstration has been adapted for plain JavaScript and utilizes React's context API for easy detection and modification of the current theme. This capability not only enhances visual appeal but also provides a better user experience by catering to individual preferences.
Built using Create React App, this theme switcher simplifies the setup process and offers a robust system for building and deploying theme-capable React applications. With its clean and straightforward implementation, even newcomers to React will find it accessible while advanced users can appreciate the level of customization it offers.

React is a widely used JavaScript library for building user interfaces and single-page applications. It follows a component-based architecture and uses a virtual DOM to efficiently update and render UI components