In the Switch popup, select Theme, and then select the desired interface theme. Press Control+` or select View | Quick Switch Scheme form the main menu. For more information, see IntelliJ Platform SDK Documentation. It is also possible to create your own UI themes for IntelliJ IDEA and customize the built-in themes.
You can install a custom theme from the JetBrains Marketplace as described in Managing plugins. If your OS is set up to auto switch between day and night modes, the IDE will automatically toggle between light and dark themes too. Select Sync with OS to let IntelliJ IDEA detect the current system settings and use the default dark or light theme accordingly. High contrast: Theme designed for users with color vision deficiency MacOS Light or Windows 10 Light: OS-specific light theme available as a bundled plugin IntelliJ Light: Traditional light theme for IntelliJ-based IDEs In the Settings dialog ( Control+Alt+S), select Appearance & Behavior | Appearance.
The interface theme is not the same as the color scheme, which defines the colors, fonts, and syntax-highlight for various text resources: the source code, search results, and so on. By default, IntelliJ IDEA uses the Darcula theme, unless you changed it during the first run. The interface theme defines the appearance of windows, dialogs, buttons, and all visual elements of the user interface.
