Assertion: microscope's image | /r/HasProperty | dark
Facets:
value: against a light background
type: OTHER
Source sentences:
text: If the reflections that are selected do not include the unscattered beam (which will appear up at the focal point of the lens), then the image will appear dark wherever no sample scattering to the selected peak is present, as such a region without a specimen will appear dark.
text: The image appears dark against a light background.
text: Images appear dark against a bright background (hence its name).