This “graphics” requirement only appears in the course support notes, as part of the comparison between N4 and N5 (page 14) and in the context of graphical environments such as Scratch (page 29). However text based environments are also accepted on the same page.
Page 29 also includes the LO from the SDD unit specification:
“Selecting and using appropriate simple data types, such as numeric (integer) and string”
The assessments standards in the NABS also make no reference to graphic data types.
I think the inclusion in the comparison table is either a mistake or a suggestion – not a requirement.
I had forgotten that the support notes do not form a mandatory part of the N4 course as they do since they were ‘moved’ at N5 level. It is confusing when they are listed in the comparison grid for N4/N5 – which is what tripped me up.