It is implied that Jal is colourblind. This is demonstrated when on two separate occasions she refers to a brown dress as being green.
Although it is never outright confirmed, Jal's father, Ronny Fazer, is most likely based upon Adrian Nicholas Matthews Thaws otherwise known as Tricky, who achieved initial notoriety as a member of the Bristol based group Massive Attack and went on to a substantive solo career around 1994/95 releasing his debut solo album "Maxinquaye" in February 1995 which draws a similar parallel with Ronny Fazer's "Intangible" album released in June 1994 according to posters round the family home in the episode.