From the Luciferin.guide, section Bootloaders
Visual feedback:
- None:
Does not modify the screen colours during booting.
- Status as colour:
Shows a dark green screen, if the tags are being installed or a dark red
screen, if the installation process has been skipped. The interval the
colours can be seen might be rather short.
Hence, purple is not a colour that is caused by the bootloader. OS4 seems to make purple screens.
