Visual representation of source code does not and will not work effectively. Equally, visual representation of the written word will not work effectively. Where images and text go together, either the text is used to explain the image or the image is just an illustration to go with the text, not a real representation.
This all changes when the code is visual, when the programmer programmes visually and there is no text involved other than for labels, names and attributes. This was what Phil Cox and colleagues realised when they produced Prograph, a visual, object orientated data flow language. Prograph was directly compiled into an executable - it was no pseudo coding system that merely generated C or Java, yet it could run interpreted (making it a dream to debug). In comparisons, clean Prograph code could be produced in about 20% of the time taken to produce the equivalent in C++ but ran only 5% slower. Isn't that what we are always looking for?
Sadly, the commercial exploitation of Prograph was not as successful (isn't it ever thus?) but the concept still lives on as Marten. http://www.andescotia.com/
Thank you Jack.