Question: Kooikers appeared in the paintings of a Dutch painter whose works are known for their abundance of what?

Context paragraphs:
Kooikerhondje: The Kooikerhondje (literal English translation "little cager dog" or "little caging dog") is a small spaniel-type breed of dog of Dutch ancestry that was originally used as a working dog, particularly in an "eendenkooi" (duck cage) to lure ducks.  Kooikers were popular in the 17th and 18th century and appeared in the paintings of Rembrandt and Jan Steen.  The breed is rapidly gaining popularity in the United States, Canada and Scandinavia, where it is still relatively unknown.

Romulo Galicano: Romulo Galicano (born February 4, 1945, in Carcar Cebu) is a Filipino painter whose works are technically academic and philosophical approach.  His paintings shows invoice and broad meaning that can be depicted through canvas.  He had numerous one man show and won various awards.  He had been judge for several competitions like in PLDT-DPC Telephone cover 8th visual art national and UST on-the-spot painting competition.

Evelyn De Morgan: Evelyn De Morgan ( ; 30 August 1855 – 2 May 1919) was an English painter whose works were influenced by the style of the Pre-Raphaelite movement.  She was a follower of Pre-Raphaelist Edward Burne-Jones.  Her paintings exhibit spirituality; use of mythological, biblical, and literary themes; the role of women; light and darkness as metaphors; life and death; and allegories of war.

Jan Miense Molenaer: Jan Miense Molenaer (1610 – buried 19 September 1668), was a Dutch Golden Age genre painter whose style was a precursor to Jan Steen's work during Dutch Golden Age painting.  He shared a studio with his wife, Judith Leyster, also a genre painter, as well as a portraitist and painter of still-life.  Both Molenaer and Leyster may have been pupils of the successful Dutch painter, Frans Hals.

Behjat Sadr: Behjat Sadr also known as Behjat Sadr Mahallāti (Persian: بهجت صدر‎ ‎ , 29 May 1924 - 11 August 2009) was an Iranian modern art painter whose works have been exhibited in major cities across the world, such as New York, Paris, and Rome.  Sadr is known for her paintings that utilizing a palette knife on canvases to create impressionistic paintings featuring visual rhythm, movement and geometric shapes.

Yi Eungro: Yi Eungro (in Hangul:이응로, in Hanja:李應魯, or Ung-no Lee, January 12, 1904 – January 10, 1989) was a Korean-born French painter whose works were chiefly focused on Easter art, Korean paintings and printmaker.  He was born in Hongseong County, Chungcheongnam-do and spent his childhood in Yesan county.

Carol Sutton (artist): Carol Lorraine Sutton; born September 3, 1945, is a multi-disciplined artist born in Norfolk, Virginia, USA and now living in Toronto, Ontario, Canada.  She is an award winning painter whose works on canvas and paper have been shown in 32 solo exhibits as well as being included in 94 group shows.  Her work, which ranges from complete abstraction to the use of organic and architectural images, relates to the formalist ideas of Clement Greenberg and is noted for the use of color.  Sutton was encouraged by critic Michael Fried whom she met 1n 1986 at Triangle Artist Workshop.  Some of Sutton paintings have been related to ontology.

Theodoric of Prague: Theodoric of Prague or Master Theoderic (in Latin Magister Theodoricus; working ca. 1360–1380) was a Bohemian Gothic painter who was court painter to Charles IV, Holy Roman Emperor and the first Bohemian painter whose name can be linked to a body of work.  His masterpiece, by which he is known, is the Chapel of the Holy Cross at Charles' newly completed Karlštejn Castle castle-palace near Prague, containing a large series of slightly over-lifesize half-length panel portraits of saints and other notable figures on a gold ground, commissioned in 1359, though completed over a number of years.  Theodoric was the first Czech painter whose works are confirmed by archived documentation.

Jan Steen: Jan Havickszoon Steen (c. 1626 – buried 3 February 1679) was a Dutch genre painter of the 17th century (also known as the Dutch Golden Age).  His works are known for their psychological insight, sense of humour and abundance of colour.

Baltimore Painter: The Baltimore Painter was an ancient Greek Apulian vase painter whose works date to the final quarter of the 4th century BC.  He is considered the most important Late Apulian vase painter, and the last Apulian painter of importance.  His conventional name is derived from a vase kept at the Walters Art Museum in Baltimore.

Supporting paragraphs: Kooikerhondje Jan Steen
Answer: colour