An anonymous reader quotes the BleepingComputer report: Microsoft today released a new version of Windows Terminal that adds a long-awaited feature that lets you create and use custom themes. At this time, users can only create themes by editing the JSON Windows Terminal global settings file to change the background color of tabs and tab rows, and to choose between light and dark terminal window themes. After adding a new theme configuration to the JSON file, it will automatically appear on the app’s Settings > Appearance Settings page.
“themes is a global property that can hold a variety of theme objects that will appear in the Theme dropdown on the Appearance page of the Preferences UI,” explained Windows Terminal Program Manager Kayla Cinnamon. “Themes can only be edited using a JSON file, but they will appear in the Theme dropdown in the settings UI.” To add your own themes, you’ll need to install the latest version of Windows Terminal Preview 1.16. The new version also adds updated default colors and sets the dark theme as the default theme instead of the default Windows theme. “We’ve changed some of the default colors in the Windows terminal for a more cohesive look. Also, we use the dark theme in the terminal by default, not the system theme,” Cinnamon added.