feat: added extra styles for delta. Use in combination with bat styles

lua/tokyonight/extra/delta.lua

@@ -0,0 +1,24 @@
+local util = require("tokyonight.util")
+
+local M = {}
+
+--- @param colors ColorScheme
+function M.generate(colors)
+  local delta = util.template(
+    [[
+[delta]
+minus-style                   = syntax "${diff.delete}"
+minus-non-emph-style          = syntax "${diff.delete}"
+minus-emph-style              = "${black}" "${red1}"
+minus-empty-line-marker-style = syntax "${diff.delete}"
+plus-style                    = syntax "${diff.add}"
+plus-non-emph-style           = syntax "${diff.add}"
+plus-emph-style               = "${black}" "${green2}"
+plus-empty-line-marker-style  = syntax "${diff.add}"
+]],
+    colors
+  )
+  return delta
+end
+
+return M