Oh Fred, it's easy.
First, choose the male and female colors. It's easiest to go to the little colored comic-book-style pictures, or more technically, a "basic representation of the phenotype." Disregard the fact that very few of the colors look like actual chickens.
I chose the black patterned silver transverse pencilled daddy and the black patterned silver duckwing momma comic-book chickens and got these results:
ERe+ co+co+ Dbdb+ Pgpg+ ml+ml+ Cha+Cha+ mh+mh+ di+di+ Ig+Ig+ cb+cb+ i+i+ bl+bl+ Lav+Lav+ C+C+ Mo+Mo+ b+b+ SS Choc+Choc+
Gender = Male, Ratio = 1/2 = 50%, minimum of animals to breed: 2
black patterned silver incomplete transverse pencilled
ERe+ co+co+ Dbdb+ Pgpg+ ml+ml+ Cha+Cha+ mh+mh+ di+di+ Ig+Ig+ cb+cb+ i+i+ bl+bl+ Lav+Lav+ C+C+ Mo+Mo+ b+- S- Choc+-
Gender = Female, Ratio = 1/2 = 50%, minimum of animals to breed: 2
black patterned silver incomplete transverse pencilled
I disagreed with the Dbdb+ but other than that was in agreement with the results.
Easy-peasy!
(Full disclosure: I chose two pretty colored comic-book chickens, clicked Calculate, and ran screaming from the room.)