CPPNs

Most of the time learning already known things is not a good idea in machine learning. Cppns are nice exceptions. Treat raster image as data and map coordinates to pixel values. The result is interesting, vector approximation of raster image. Better yet, multi layer function have potential to be more compact than pure vector lines.

Testing 3rd party api

Keeping the trials in a test suite for 3rd party api ensures consistency in later stages. a good suggedtion from book Clean Code

DRY Principle

I like the DRY (Do not repeat yourself) principle. In my words, do not copy-paste your code; use functions, modules, etc. to avoid that. This will reduce the point of maintenance. Wikipedia