The new 14-inch and 16-inch MacBook Pro models with PROLED XDR displays bring back the glowing Apple logo, which lights up when the Mac is awake and adjusts brightness based on ambient light. If you prefer the logo dark, Apple allows you to disable it via a Terminal command — no restart required. The setting applies to all user accounts and persists across migrations and recovery modes.
To turn it off, open Terminal and run: sudo defaults write com.apple. CoreBrightness LEBacklightMode -int 0, then enter your administrator password. To re-enable it later, use **sudo defaults delete com.apple.
CoreBrightness LEBacklightMode**. The glowing logo first appeared on the 1999 PowerBook G3 and was a staple for 16 years until Apple removed it in 2015. The original upside-down orientation was intentional to prevent users from opening the laptop incorrectly — a self-correcting issue — while an upside logo was seen as a lasting visual flaw.
Steve Jobs later reversed the decision. Apple discontinued the glowing logo starting with the 12-inch MacBook in 2015, and it’s now back only on the latest MacBook Pro models.
Source: MacRumors · Summarized by HeadlinesBriefing