void SetPalette(APTR handle, ULONG *palette, struct hwTagList *tags);
HWEXT_DISPLAYADAPTER_MAINLOOP
extension bit has been set. See Extension plugins for details. If that is
the case, it must change the palette of the display specified by handle to the
palette that is passed in the palette argument. The colors in the palette
array are passed as raw RGB values.
Note that if you want Hollywood to call this function, you also must set HWDISPTAG_PALETTEMODE
to True in your OpenDisplay() implementation and you must set
the HWSDAFLAGS_SETPALETTE flag in your call to hw_SetDisplayAdapter().
See hw_SetDisplayAdapter for details.
NULL