I think it is an education thing. The person serving me saw that it looked a bit different and wanted something they recognised, despite all data being the same.
The same person made me hand draw the map of where I lived. I submitted a screenshot from google maps. They asked me to draw in the major roads, "Big-C" which is a local landmark for us, "the army base" another landmark. I indicated a Major Hospital, that drew a blank look.
The answer areas are in blue to indicate where you type in your details. The blue will dissapear when you save and print it.
As an aside
I downloaded the form from Immigration website.
When I got to the Immigration Office I had to fill out a new one (actually two) because what I had was "old". Just get to an office and use their forms is my suggestion.