I'm moving to Greenfoot from using Processing (another Java-based tool for students, artists, etc.). Although the online tutorials and the 2nd ed. book are great, I thought I'd try translating a small Processing project into Greenfoot world.
First problem right at the beginning was not understanding how to draw simple figures using low-level GreenfootImage commands. I'd like to do something like this:
1. Create transparent image
2. Draw colored rectangle that fills the space
3. Draw basic figures using drawRect(...)
Perhaps I'm still mentally stuck in "Processing World" but, at this point, I'm curious about drawing basic figures directly rather than importing PNG-format images.

