Demonstrate 'Shirt Blue' Application

What happens here

The presenter demonstrates the application of 'Shirt Blue' on his blue t-shirt, which is already marked with what appears to be white paint. He takes the white, marker-like 'Shirt Blue' tool and dabs its tip onto the stained areas of his shirt. He humorously explains that 'Shirt Blue' 'goes on black and turns blue,' similar to color-changing ceiling paint, despite the visible action showing him applying a white substance to a blue shirt to seemingly cover white paint marks. This satirical action is presented as a 'solution' to paint stains by covering them up, not removing them, and certainly not using natural ingredients.

Goal: The presenter dabs the 'Shirt Blue' marker onto his paint-stained blue t-shirt, humorously claiming it changes color while visually applying a white substance.