This is a syntax highlighter for Python. DO note that this is not parsed/processed in Scratch itself and instead is processed by a Python project. ONLY Python is supported. For those who don't know Python, test it with print('(whatever you want here)') This project may be buggy at times. Putting special characters like {} and [] may break the project completely.
@TimMcCool for his Scratchattach python package and the cloud requests sprite @-Rex- for his blazing fast pen text engine