How can you switch between dark mode and light mode?

Reddit supports both dark mode and light mode, and switching between them is a quick operation available through the account settings menu on both desktop and mobile. On the desktop website, the toggle is accessible without entering the full settings page. According to r/help guidance on enabling light mode, you click your profile picture in the top right corner of the page, and the dropdown menu that appears includes a "Dark Mode" toggle near the bottom. Clicking it immediately switches the interface between dark and light themes without requiring a page reload. This quick-access placement means you do not have to navigate into account settings every time you want to change the visual theme. On the official mobile app, the process is slightly more involved, as described in r/techtalktutorials: tap your profile icon in the upper right corner, tap Settings, and scroll down to the Dark Mode section, where you can toggle it on or off. Some versions of the app also offer a "Sync with device" or "Follow system theme" option that automatically matches Reddit's display mode to your device's system-wide dark or light mode preference — enabling this means Reddit will switch automatically when your phone or computer switches themes, removing the need to manage it manually. Dark mode renders the interface with dark backgrounds and light text, which many users find more comfortable for reading in low-light environments and which can reduce eye strain during extended browsing sessions. Light mode uses a white background with dark text. The choice is purely aesthetic and does not affect any functionality. Reddit also offers a distinct "Reddit Black" variant in some apps, which uses a true black background (OLED-friendly) rather than dark gray — this is sometimes a separate option under the same settings section.