Learn how to create a theme switcher using HTML and CSS in this comprehensive tutorial video. Explore the power of custom properties and the :has() selector to easily implement color theming. Discover how to save user preferences using localStorage and implement a fallback for browsers without :has() support. Follow along as the instructor guides you through setting up the color theme selector, styling the picker, adding functionality, and handling browser compatibility. Gain practical insights into creating visually appealing and user-friendly theme switching functionality for your web projects.