The Djavoli are primarily an anti-fascist supporter group. One reason is the Kragujevac massacre by Nazi German soldiers during World War II. About 7000 Serbian men and boys were murdered. Therefore, there is a deep-rooted antifascist attitude within the Djavoli. The group's traditional colors are mainly red which are also the colors of all the Radnički Kragujevac sports clubs. During games fans will often be clad in red, as well as official team merchandise, and other productts. Red caps are especially popular, just like the first fans of Radnički Kragujevac through which they were recognizable. Some also wear the Šajkača. Their style of supporting includes the use of flares and large flags, choreographies, chanting, and displaying banners. Instruments such as drums and trumpets often feature, similar to the supporters in South America. This creates for the region a typical and distinctive atmosphere. Similar to the Balkan Brass Bands during the Guča Trumpet Festival in central Serbia.