To see the available options, open up a new tab, then click the Customize Chrome button (lower right). Click Chrome Web Store to see more official and third-party themes you can install. With a tab open in Chrome, click the three dots in the top right corner, then choose Cast, save and share > Cast. Via the Sources button, you can choose to cast just the tab you're in, or your entire Windows or macOS desktop, including Google Chrome. Switch up your search engineJust because you use Google Chrome doesn't mean you have to use Google Search—maybe you want to switch to a privacy-first alternative, like DuckDuckGo.