Welcome to Recto's guide, where the rules are simple: be long, be wide, and never, ever be round.
Step 1: Choose a color. Any color. But make sure it's not that boring old beige.
Step 2: Find a corner. Any corner. But make sure it's a 90-degree angle.
Step 3: Repeat steps 1-2 until you're satisfied with your rectangular shape.
Still stuck? Try our troubleshooting guide: I'm a rectangle, but I don't feel right
And for the love of all things rectangular, don't even think about being a circle!