The article discusses a fun visual customization feature for WhatsApp, where users can replace the app's logo with an image of a pink unicorn. This feature is not built into WhatsApp but can be accessed through an external program known as Launcher. The change serves as a creative expression and adds a playful element to the otherwise standard app interface.

The concept of the unicorn has evolved over time; originally seen as a dangerous and exotic creature, it has transformed into a symbol of uniqueness and individuality in modern culture. The article highlights how this mythical being embodies the traits of startups that achieve rapid success, often referred to as 'unicorns' in the business world. Hence, activating the 'pink unicorn mode' can be seen as a playful nod to both fantasy and the entrepreneurial spirit.

Ultimately, the piece appeals to WhatsApp users looking to personalize their experience while tying in broader social themes about individuality and the changing perception of symbols in culture. It taps into the current trend of customization in digital products, allowing users to express their identity through their app interfaces.