Press the green flag to render the text. You can change the actual text using 'see inside' if you want to. Might be worth re-doing this at 60/30 degrees rather than 45/45..?
In the style of https://scratch.mit.edu/projects/128467435/ and https://scratch.mit.edu/projects/129285225/ Font came from http://sunge.awardspace.com/glcd-sd/node4.html Quick iso refresher: http://clintbellanger.net/articles/isometric_math/ The code needs tweaking but this is enough to give the general idea.