There are different lessons on code practices. The example of 6.1 code practice is below;
6.1 code practice
First step is to change the r line making it:
r = 0
After than you have to replace the r, g, b terms listed below as:
gray = random.randint(0,255) randRGBColor = "RGB( " + str(gray) + "," + str(gray) + "," + str(gray) + ")"
Then you have to replace the randRGBColor line by:
randRGBColor = "RGB( " + str(r) + "," + str(0) + "," + str(0) + ")".
The 6.1 Lesson practice has the color codes which are save as Strings.
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