feat(windows_terminal): add Windows Terminal colors (#315)

lua/tokyonight/extra/init.lua

@@ -30,6 +30,7 @@ function M.setup()
     delta = "gitconfig",
     terminator = "conf",
     prism = "js",
+    windows_terminal = "json",
   }
   -- map of style to style name
   local styles = {

lua/tokyonight/extra/windows_terminal.lua

@@ -0,0 +1,40 @@
+local util = require("tokyonight.util")
+
+local M = {}
+
+--- @param colors ColorScheme
+function M.generate(colors)
+  local windows_terminal = util.template([[
+# Add the following object to your Windows Terminal configuration
+# https://learn.microsoft.com/en-us/windows/terminal/customize-settings/color-schemes#creating-your-own-color-scheme
+{
+    "background": "${bg}",
+    "black": "${black}",
+    "blue": "${blue}",
+    "brightBlack": "${terminal_black}",
+    "brightBlue": "${blue}",
+    "brightCyan": "${cyan}",
+    "brightGreen": "${green}",
+    "brightPurple": "${purple}",
+    "brightRed": "${red}",
+    "brightWhite": "${fg}",
+    "brightYellow": "${yellow}",
+    "cursorColor": "${fg}",
+    "cyan": "${cyan}",
+    "foreground": "${fg}",
+    "green": "${green}",
+    "name": "${_style_name}",
+    "purple": "${magenta}",
+    "red": "${red}",
+    "selectionBackground": "${bg_visual}",
+    "white": "${fg_dark}",
+    "yellow": "${yellow}"
+}
+]],
+    colors
+  )
+
+  return windows_terminal
+end
+
+return M