I'm feeling rather uncreative, and want to get participation back up, so I'm going with a simple challenge. Challenge 5 is to make black and white icons of whichever quadrangle pairing you want. Your icons must be COMPLETELY black and white... Not even a hint of colour!
You may make a maximum of 4 icons.
Your deadline is September 4 at midnight.
Before you enter, please read the rules.
Comment here with any questions.