Tweak is intended for rapid prototyping and fast-paced software development. Beginning programmers often "hard code" values into their sketches as they tinker with how things are drawn on screen or handled behind the scenes, while expert developers usually build numerous classes, data types, and specifications to allow for scale and robustness. Tweak is a friendly middle ground where beginners and experts alike can enable programs to be modified on-the-fly without having to worry about the details behind the scenes.
Step 1: Running Tweak for the first time
There are two examples you can start from:
Tweak Simple Demo
Tweak Complex Demo
To change variable values, just click and drag your mouse over the variable's name in the Tweak Panel.