The trumpet (also called the piston) is a wind musical instrument made of metal (usually yellow brass) and played by the vibration of the lips against a mouthpiece. The trumpet is what produces the sharpest sound of brass instruments.
The trumpet is an evolution of the trumpet of wood, silver, or other metals that appeared in Egypt in the second millennium BC when it was a small, straight instrument of military and religious use and played only one or two notes. It was used as a signaling instrument for military or civilian purposes (announcing battles or the arrival of authorities). In ancient Greece it was called salpinge and in Rome it was called a tuba. Finally, the trumpet was eventually used to play music from the Middle Ages (around the fifth to the fifteenth century).
Based on the information given, the improvement will be the addition of a sweet that has a red color.
It should be noted that color is important in art as it's used for the creation of flare and the enhancement of a particular product.
In this case, it should be noted that every brand is usually associated with a particular color that makes it stand out. Therefore, the addition of a sweet that has a red color will make the brand unique since red is typically associated with Skittles.