Create a simple 2D vector game asset of a cupcake icon. The cupcake should have a rounded top with colorful frosting in pastel pink, adorned with sprinkles in various colors. The cupcake liner should be a light brown, giving it a classic look. Use bold outlines and flat colors, with minimal shading. The background should be a solid light color, like soft cream, to help the cupcake stand out as a fun and inviting treat.