The most commonly known and scientific advantage of dark mode is that it saves energy consumption on devices with OLED or AMOLED displays. When the background is white, all the pixels are turned on and the display demands more power. It also reduce eye strain and improve battery life. Hope this tutorial can help. WATCH MORE OF MY YOUTUBE TUTORIALS HERE: HOW TO SHOW FOLLOWERS IN FACEBOOK PROFILE: • How to Show Followers on Facebook #... HOW TO ACTIVATE THE FOLLOW BUTTON ON FACEBOOK PROFILE: • How to Show Followers on Facebook #... HOW TO FIX THEMES NOT WORKING ON UPDATED MESSENGER: • Video HOW TO READ DELETED MESSAGES ON MESSENGER: • Video #facebookdarkmode#howto