The phrase "a pattern of dark" is correct and usable in written English.
It can be used to describe a recurring or consistent arrangement of dark elements, such as colors, shapes, or themes in art, design, or nature.
Example: "The artist's latest work features a pattern of dark hues that evoke a sense of mystery and depth."
Alternatives: "a design of darkness" or "a motif of shadow".
He and his colleagues did that by examining an unusual fossil feather from Brazil with a pattern of dark and white stripes.
The result will be a pattern of dark and light bands, or "fringes", whose separation depends on the relative distances travelled by the two beams, and thus on the separation of the satellites.Having established that distance, the third stage is to "lock" it in.
Its most recognisable feature is a pattern of dark vertical stripes on reddish-orange fur with a lighter underside.
Adult zebra sharks are distinctive in appearance, with five longitudinal ridges on a cylindrical body, a low caudal fin comprising nearly half the total length, and a pattern of dark spots on a pale background.
The crossback stingaree is grayish to yellowish brown above with a pattern of dark markings, including a stripe running along the midline and crossed by three transverse bars: one near the eyes, one over the gill region, and one over the center of the disc.
Using white light illumination, the view of the tentacles under the stereomicroscope is dominated by a pattern of dark pigment rings (Figure 1B).
It was divided into small brown squares, each with a pattern of darker brown, rust, and tan squiggles and shapes.
It was divided into small brown squares, each with a pattern of darker brown and rust and tan squiggles and shapes.
It is brownish gray above and lighter below, with a pattern of darker saddles and blotches in younger sharks.
It appears in an amateur telescope with brighter areas in the north and south; the brighter southern patch shows a pattern of darker and lighter spots in a large instrument.
When they enter a darker environment, they allow their chromatophores to expand, creating a pattern of larger dark spots, and making their bodies appear dark.
