根據瀏覽器的佈景主題設定，自動從明亮和黑暗模式間切換。
這裡只顯示彼此間有代碼差異的版本。 顯示所有版本。
Refactored code
Minor changes
Fixed breakage when no theme was set previously
Added back the missing @require
@require
Added compatibility with Greasemonkey
