20% OFF discount vibrant chalk style with color burst

A vibrant and eye-catching illustration of a "20% OFF" discount on a black background. The "20" text is scribbled red, "%" white, and "OFF" light pink, all with a chalk-like texture. Colorful rays in yellow, blue, pink, and red radiate from the center, creating a dynamic effect. The composition focuses on the text, conveying an energetic, promotional, and modern atmosphere, ideal for sales announcements.