const toggleDarkMode = () => { const checked = $('.dark-mode').checked; chrome.storage.sync.set({ 'dark-mode': checked, }); $('#dark-mode-stylesheet').disabled = !checked; }; const initDarkMode = () => chrome.storage.sync.get('dark-mode', ({ 'dark-mode': usingDarkMode }) => { $('.dark-mode').checked = usingDarkMode; }); $('.dark-mode').addEventListener('click', toggleDarkMode); initDarkMode();