Windows Terminal lets you create custom colorschemes by editing the settings.json file. For more info, check out this article from Microsoft Learn.
Add the follownig to the scheme array in the settings.json file:
"schemes":
[
{
"name": "Smores",
"cursorColor": "#F5E8C7",
"selectionBackground": "#D9B08C",
"background": "#2A1B0D",
"foreground": "#F5E8C7",
"black": "#2A1B0D",
"blue": "#5B4B3A",
"cyan": "#8A7A5A",
"green": "#6B4E31",
"purple": "#7A4A4A",
"red": "#A63A3A",
"white": "#F5E8C7",
"yellow": "#FFB454",
"brightBlack": "#4A3723",
"brightBlue": "#7A6952",
"brightCyan": "#A69574",
"brightGreen": "#8A6A41",
"brightPurple": "#9A6A6A",
"brightRed": "#C64A4A",
"brightWhite": "#FFF5E1",
"brightYellow": "#FFD700"
}
], "schemes":
[
{
"name": "Brownie",
"cursorColor": "#F5E8C7",
"selectionBackground": "#D9B08C",
"background": "#000000",
"foreground": "#F5E8C7",
"black": "#2A1B0D",
"blue": "#5B4B3A",
"cyan": "#8A7A5A",
"green": "#6B4E31",
"purple": "#7A4A4A",
"red": "#A63A3A",
"white": "#F5E8C7",
"yellow": "#FFB454",
"brightBlack": "#4A3723",
"brightBlue": "#7A6952",
"brightCyan": "#A69574",
"brightGreen": "#8A6A41",
"brightPurple": "#9A6A6A",
"brightRed": "#C64A4A",
"brightWhite": "#FFF5E1",
"brightYellow": "#FFD700"
},