How to change volume icon on Mac boot picker I installed Windows and Linux on my Mac. The Linux (Fedora) partition gets an icon on the boot picker (hold option on power up) as shown in picture:



Just for the purpose of doing it, how can I also set an icon for the macOS and Windows partition?
Place a 512x512 icns at the root of the partition named .VolumeIcon.icns. Startup Manager should pick this up and use it on that page.