Open your settings.json. To open the file, select Settings in the Windows Terminal dropdown menu while holding Shift.

Define the theme in the schemes array of your settings.json file:

{
  "name": "Wildberries",
  "background": "#1902e",
  "foreground": "#ffe82",
  "black": "#151515",
  "blue": "#90048",
  "cyan": "#0ff40",
  "green": "#f4cc53",
  "purple": "#0ffff",
  "red": "#c79bff",
  "white": "#0ffb7",
  "yellow": "#d0d0d0",
  "brightBlack": "#505050",
  "brightBlue": "#90048",
  "brightCyan": "#0ff40",
  "brightGreen": "#f4cc53",
  "brightPurple": "#0ffff",
  "brightRed": "#c79bff",
  "brightWhite": "#0ffb7",
  "brightYellow": "#f5f5f5"
}

And of course, save the file and you’re done!