MUSTEK_UNIT_SPEC
window_data.frame.header = MUSTEK_LINEART_BACKGROUND | MUSTEK_UNIT_SPEC;
window_data.window1.header = MUSTEK_WINDOW_MASK | MUSTEK_UNIT_SPEC;
MUSTEK_MODE_MASK | MUSTEK_HT_PATTERN_BUILTIN | MUSTEK_UNIT_SPEC;