Possible interpretations:
"It’s just paint," she muttered, adjusting the straps of her combat boots. She was currently deep in Sector 4, an abandoned transit hub. Her job was simple: find the rival tagger and scare them off. Or, if the boss was in a bad mood, do worse.
In a world that wants you to blend in, "Purple Feet" is about the tracks you leave behind. Historically, purple has been the color of royalty, creativity, and unconventionality. When we talk about this lifestyle, we’re talking about: