Boston Python Workshop/Saturday/ColorWall

Program graphical effects for a ColorWall using the Tkinter GUI toolkit. See the ColorWall in action here.

Setup

Find and change the colors used in the Checkerboards effect, and re-run the effect:
```
python run.py Checkerboards
```
Then change the line
```
    if (x + y + i) % 2 == 0:
```
to
```
    if (x + y + i) % 3 == 0:
```
re-run the effect, and see what changed.
Find and change the color of the columns in the Matrix effect, and re-run the effect:
```
python run.py Matrix
```
Each column that we see on the wall corresponds to a Column object. Add some randomness to the color used by each column (the variable whose value you changed above) using the random.random function, re-run the effect, and see what happens.
Walk through Twinkle. Find explanations of the random.randint and random.uniform functions in the online documentation at http://docs.python.org/library/random.html. Experiment with these functions at a Python prompt:
```
import random
random.randint(0, 1)
random.randint(0, 5)
random.uniform(-1, 1)
```
Then experiment with the numbers that make up the hue and re-run the effect:
```
python run.py Twinkle
```
Write your own effects!

If you choose to use HSV colors you define instead of the dictionary, you may find some of the following useful: