Michael White

Start by checking whether the webcam appears at all in IORegistry/USB tree. If it is missing, fix the internal USB port map and confirm the camera port is set to the correct internal type; if it appears but never produces an image, it may not be UVC-compatible. For the mic, test whether the built-in mic or combo jack is detected under Sound > Input, and try the appropriate AppleALC layout for your codec. A USB webcam with its own mic is a useful fallback for isolating whether the issue is USB mapping or audio layout.

The `.contentFlavour` file in the theme folder is not what matches an entry; the flavour comes from the entry itself, and the icon filename must equal that flavour, not the EFI filename or volume label. UKI entries often both report `Linux`, so they fall back to the same icon. Put a per-entry flavour file beside each UKI with a distinct flavour, then add an icon named for that exact flavour in the active theme. Rebuild/reset the boot entries afterwards and check the flavour OpenCore actually reports.